An information code producing apparatus produces a free space inside the code region of an information code arranged on a medium such as sheets of paper. The free space is arranged at a position other than specification pattern regions. data being interpreted, which are expressed by cells, are not recorded in the free space. The free space has a preset size which is larger than that of a single cell. The information code producing apparatus detects the size of this free space by, at least, either selection from a plurality of candidate shapes prepared in advance or input of shape designating information provided from the outside.
|
8. An information code comprising:
a code region;
a specification pattern region on is arranged in the code region of the information code formed on a medium, predetermined-shape specification patterns being arranged in the specification pattern region, the specification patterns including patterns indicating a position of the code region;
a data recording region arranged in the code region, information being recorded in the data recording region based on a plurality of types of cells, each of the cells functioning as a unit of information; and
an image region is configured in the code region, a recognition process being applied to the image region, the recognition process being independent of a decoding process applied to the cells of the data recording region.
1. A method of producing an information code by an information code producing apparatus,
the method comprising:
arranging, in a code region of the information code formed on a medium, i) a specification pattern region in which predetermined-shape specification patterns are arranged, the specification patterns including patterns indicating a position of the code region, and ii) a data recording region in which information is recorded based on a plurality of types of cells, each of the cells functioning as a unit of information; and
configuring, in the code region, an image region to which a recognition process is applied by an information code reader, the recognition process being independent of a decoding process applied by the information code reader to the cells of the data recording region.
14. An information code reader which reads an information code,
the information code comprising:
a code region;
a specification pattern region arranged in the code region of the information code formed on a medium, predetermined-shape specification patterns being arranged in the specification pattern region, the specification patterns including patterns indicating a position of the code region;
a data recording region arranged in the code region, information being recorded in the data recording region based on a plurality of types of cells, each of the cells functioning as a unit of information; and
an image region configured in the code region, recognition process being applied to the image region, the recognition process being independent of a decoding process applied to the cells of the data recording region, and
the information code reader comprising:
an imaging unit imaging the information code as a code image;
a data-recording-region reading section reading the data recorded in the data recording region based on contents of the data recording region provided in the code image of the information code when the information code is imaged by the imaging unit; and
an image processing section performs a process for recognizing an image of the image region provided in the code image, based on a method which is different from an interpretation process to be applied to the data performed by the data-recording-region reading section.
20. A system which uses an information code, comprising:
an information code producing apparatus producing an information code in which cells are arranged inside a predetermined code region of a medium, each of the cells functioning as a unit of information; and
an information code reader reading the information code produced by the information code producing apparatus,
wherein the information code producing apparatus produces the information code comprising:
a code region:
a specification pattern region arranged in the code region of the information code formed on the medium, predetermined-shape specification patterns being arranged in the specification pattern region, the specification patterns including patterns indicating a position of the code region;
a data recording region arranged in the code region, information being recorded in the data recording region based on a plurality of types of the cells; and
an image region configured in the code region, a recognition process being applied to the image region, the recognition process being independent of a decoding process applied to the cells of the data recording region, and
wherein the information code reader comprises:
an imaging unit imaging the information code as a code image;
a data-recording-region reading section reading the data recorded in the data recording region based on contents of the data recording region provided in the code image of the information code when the information code is imaged by the imaging unit; and
an image processing section performing a process for recognizing an image of the image region provided in the code image, based on a method which is different from an interpretation process to be applied to the data performed by the data-recording-region reading section.
2. The method of
the code region includes the specification pattern region, the data recording region, and an error-correction-code recording region in which error correction codes are recorded with a plurality of types of the cells.
3. The method of
arranging, inside the code region, a free space at a position located outside both the specification pattern region and the data recording region, the free space having a size larger in area than a single cell of the cells, the free space having no data being interpreted based on the cells.
4. The method of
recording, into the data recording region, position data showing a position of the image region which is located in the code region, the image region being recognized as an image by the information code reader.
5. The method of
recording, into the data recording region, identification information showing that the image region is present in the code region, the image region being recognized as an image by the information code reader.
6. The method of
the image region recording step records the image region as a region in which a signature is recorded.
7. The method of
the configuring step configures the image region as a free space, the free space having a size larger in area than a single cell of the cells, information depicted in the free space being prevented from being decoded by the decoding process applied to the cells.
9. The information code of
the code region includes the specification pattern region, the data recording region, and an error correction code recording region in which an error correction code is recorded based on a plurality of types of the cells.
10. The information code of
a free space is disposed in a position other than the specification pattern region and the data recording region inside the code region, the free space being a region in which no data being interpreted is recorded by the cells, the free space having a predetermined size in area larger than a size of a single cell of the cells.
11. The information code of
position data is recorded in the data recording region, the position data showing a position of the image region which is located in the code region.
12. The information code of
identification information is in the data recording region, the identification information indicating that the image region is present in the code region.
13. The information code of
the image region is configured as a region in which a signature is recorded.
15. The information code reader of
the information code comprises, in the code region, the specification pattern region, the data recording region, and an error-correction-code recording region in which error correction codes are recorded with a plurality of types of the cells.
16. The information code reader of
the information code comprises, inside the code region, a free space at a position located outside both the specification pattern region and the data recording region, the free space having a size larger in area than a single cell of the cells, the free space having no data being interpreted based on the cells.
17. The information code reader of
the information code includes predetermined identification information in the data recording region, and
the image processing section performs the process for recognizing the image of the image region, based on results read from the data recording region by the data-recording-region reading section, when the identification information is recorded in the data recording region.
18. The information code reader of
the information code reader comprises a storage in which a pattern image is registered, the pattern image being compared with the image of the image region,
wherein the image processing section determines whether or not the image of the image region included in the code image corresponds to an image registered in the storage via a consistent judgment between the image of the image region and the pattern image registered in the storage.
19. The information code reader of
a signature image is registered in the storage as the pattern image; and
the image processing section determines whether or not the image of the image region included in the code image corresponds to the signature image registered in the storage via a consistent judgment between the image of the image region and the signature image registered in the storage.
|
This application is based on and claims the benefit of priority from earlier Japanese Patent Applications:
2012-276910 filed Dec. 19, 2012;
2013-010222 filed Jan. 23, 2013;
2013-065835 filed Mar. 27, 2013;
2013-195348 filed Sep. 20, 2013;
2013-255485 filed Dec. 10, 2013; and
2013-239366 filed Nov. 19, 2013
the descriptions of which are incorporated herein by reference in their entireties.
The present invention relates to an information code such as a two-dimensional code, a production method for producing the information code, an information code reader that reads the information code, and a system which uses an information code that uses the information code.
Information codes such as two-dimensional codes are now being used in many applications. A technique in which a photograph, a drawing, or the like is arranged within a code region has also been proposed. For example, a technique provided by patent literature 1 involves a two-dimensional code in which strings of reverse-converted bits that have been reversely converted from strings of bits are determined. These strings of bits form a region in the two-dimensional code that is read as a single gray level. The two-dimensional code is produced by the reverse-converted bit strings being converted based on format information of the two-dimensional code. A unique two-dimensional code that has a design region composed of the single gray level is thereby produced.
- [PTL 1] JP Patent No. 5057560
In the technique shown by the foregoing patent literature 1, if the unique two-dimensional code has a design region composed of white modules, given design data are combined with the unique two-dimensional code such that a design composed of gray levels which can be read as white is formed in the design region. In contrast, if the unique two-dimensional code has a design region composed of black modules, given design data are combined with the unique two-dimensional code such that a design composed of gray levels which can be read as black is formed in the design region
However, in the information code including a design region that has been used since the past, only the data expressed by cell arrangements and the like are subjected to analysis and reading. Illustrations and the like in the design region are exclusively used for presentation aimed at the user. In other words, the idea of using the design or the like that is attached in the information code through analysis on the reader side did not exist. Usability could not be improved through use of the design region when reading.
Furthermore, the present invention has been achieved to solve the above-described issues. An object of the present invention is to provide an information code that enables use of an image other than cells attached within the information code, an information code production method, an information code reader, and a system which uses an information code.
In order to accomplish the object, a first aspect of the present invention provides a method of producing an information code by an information code producing apparatus, cells being arranged inside a predetermined code region of a medium, each of the cells functioning as a unit of information. The method is characterized by comprising:
arranging, in the code region, i) a specification pattern region in which predetermined-shape specification patterns are arranged, the specification patterns including patterns indicating a position of the code area, and ii) a data recording region in which data are recorded using a plurality of types of the cells; and
configuring, in the code region, an image region to which a predetermined image recognition process is applied by the image information code reader.
A second aspect of the present invention provides an information code, wherein cells are arranged inside a predetermined code region of a medium, each of the cells functioning as a unit of information. The information code is characterized in that
a specification pattern region is arranged in the code region, predetermined-shape specification patterns being arranged in the specification pattern region, the specification patterns including patterns indicating a position of the code area;
a data recording region is arranged in the code region, data being recorded in the data recording region using a plurality of types of the cells; and
an image region is configured in the code region, a predetermined image recognition process being applied to the image region by the image information code reader.
A third aspect of the present invention provides an information code reader which reads an information code in which cells are arranged inside a predetermined code region of a medium, each of the cells functioning as a unit of information. The reader is characterized in that
a specification pattern region arranged in the code region, predetermined-shape specification patterns being arranged in the specification pattern region, the specification patterns including patterns indicating a position of the code area;
a data recording region arranged in the code region, data being recorded in the data recording region using a plurality of types of the cells; and
an image region configured in the code region, an image different from an image based on the cells being provided in the image region, and
the information code reader comprises:
an imaging unit imaging the information code as a code image;
a data-recording-region reading section reading the data recorded in the data recording region based on contents of the data recording region provided in the code image of the information code when the information code is imaged by the imaging unit; and
an image processing section performs a process for recognizing an image of the image region provided in the code image, based on a method which is different from an interpretation process to be applied to the data performed by the data-recording-region reading section.
A fourth aspect of the present invention provides a system which uses an information code, characterized in the system comprises:
an information code producing apparatus producing an information code in which cells are arranged inside a predetermined code region of a medium, each of the cells functioning as a unit of information; and
an information code reader reading the information code produced by the information code producing apparatus,
wherein the information code producing apparatus produces the information code comprising:
a specification pattern region arranged in the code region, predetermined-shape specification patterns being arranged in the specification pattern region, the specification patterns including patterns indicating a position of the code area;
a data recording region arranged in the code region, data being recorded in the data recording region using a plurality of types of the cells; and
an image region configured in the code region, an image different from an image based on the cells being provided in the image region, and
wherein the information code reader comprises:
an imaging unit imaging the information code as a code image;
a data-recording-region reading section reading the data recorded in the data recording region based on contents of the data recording region provided in the code image of the information code when the information code is imaged by the imaging unit; and
an image processing section performs a process for recognizing an image of the image region provided in the code image, based on a method which is different from an interpretation process to be applied to the data performed by the data-recording-region reading section.
In order to accomplish the object, the present invention further provides a fifth aspect and a sixth aspect.
A fifth aspect relates to an information code reader which reads an information code in which cells are arranged inside a predetermined code region of a medium, each of the cells functioning as a unit of information. The system is characterized in that:
the information code comprises:
-
- a specification pattern region arranged in the code region, predetermined-shape specification patterns being arranged in the specification pattern region, the specification patterns including patterns indicating a position of the code area;
- a data recording region arranged in the code region, data being recorded in the data recording region using a plurality of types of the cells; and
- an image region configured in the code region, an image different from an image based on the cells being provided in the image region; and
the information code reader comprises:
-
- an imaging unit imaging the information code as a code image;
- a data-recording-region reading section reading the data recorded in the data recording region when the information code is imaged by the imaging unit; and
- an image processing section performs a predetermined image processing of an image of the image region provided in the code image of the information code imaged by the imaging unit, based on a method which is different from an interpretation process to be applied to the data performed by the data-recording-region reading section, wherein:
usage data is recorded in the data recording region, the usage data being used when the image processing section performs the image processing of an image of the image region; and
the image processing section uses the usage data read by the data-recording-region reading section, and performs the image processing of an image of the image region.
Moreover, the sixth aspect relates to a system which uses an information code. The system is characterized in the system comprises:
an information code producing apparatus producing an information code in which cells are arranged inside a predetermined code region of a medium, each of the cells functioning as a unit of information; and
an information code reader reading the information code produced by the information code producing apparatus,
wherein the information code producing apparatus produces the information code comprising:
a specification pattern region arranged in the code region, predetermined-shape specification patterns being arranged in the specification pattern region, the specification patterns including patterns indicating a position of the code area;
a data recording region arranged in the code region, data being recorded in the data recording region using a plurality of types of the cells; and
an image region configured in the code region, an image different from an image based on the cells being provided in the image region, and
wherein the information code reader comprises:
an imaging unit imaging the information code as a code image;
a data-recording-region reading section reading the data recorded in the data recording region when the information code is imaged by the imaging unit; and
an image processing section performs a predetermined image processing of an image of the image region provided in the code image of the information code imaged by the imaging unit, based on a method which is different from an interpretation process to be applied to the data performed by the data-recording-region reading section, wherein:
the information code producing apparatus records usage data in the data recording region, the usage data being used when the image processing section performs the image processing of an image of the image region; and
the image processing section of the information code reader uses the usage data read by the data-recording-region reading section, and performs the image processing of an image of the image region.
According to the first aspect of the present invention, it is possible to obtain, as objects being interpreted, both an image recorded in the data recording region and an image arranged in the image region arranged in the code area. Additionally, the information code can be provided such that the image from the image region is usable by applications other than interpretation for the data recording region.
In the second aspect of the present invention, it is also possible to obtain, as objects being interpreted, both an image recorded in the data recording region and an image arranged in the image region arranged in the code area. Additionally, the information code can also be provided such that the image from the image region is usable by applications other than interpretation for the data recording region.
In the third aspect of the present invention, it is also possible to obtain, as objects being interpreted, both information recorded by the cells in the data recording region and an image formed in the image region. Additionally, the image from the image region is usable by applications other than interpretation for the data recording region.
In the third aspect of the present invention, an object being read is an information code provided with a special display portion, which enables a predetermined display when being imaged a predetermined imaging method and disenables the predetermined display when being imaged by a method different from the predetermined imaging method. Hence, it is possible to read data form the information code and recognize the predetermined display performed by the predetermined display portion. Recognizing this predetermined display makes it possible to perform authentication about the predetermined display.
In the fifth aspect, the information code reader recognizes both information recorded by the cells in the data recording region and an image (which is different from the cells) provided in the image region in the code region. Hence, by the reader, an image other than the cells can be used by applications other than interpretation of the data recording region.
Moreover, the information code, which is an object being read, is configured such that data used for processing images are recorded in the data recording region. The reader uses the data from the data recording region to process an image provided in the image region. It is thus possible to process the image in association with data recorded in the recording region, not simply processing the image in the image region. Accordingly, for using the image in the image region, a degree of freedom of the use increases, widening applications of the image in the image region.
One example of the fifth aspect is to record comparison data in the data recording region of the information code. The comparison data are for comparison with data obtained by analyzing at least part of the image in the image region or the image in the image region. The image processing section of the reader uses the comparison data to determine whether or no the image in the image region is a given normal image.
By this configuration, an image being used and the comparison data for comparison with the image can be obtained at the same time by one time of imaging, thereby providing both the image and the comparison data which are to be mutually associated, in an accurate manner. Work time and processing time can be shortened easily.
Incidentally, a prior art is disclosed by a patent literature 2 (JP-A-2001-256501) providing a verification technique. A two-dimensional code adhering on an article is read and an authenticated person's palm is then read. The data from the code and the data showing characteristic points in the palm pattern are mutually compared. However, this technique is based on both data of the two-dimensional code and the authenticated person (his or her palm) which are separately collected. For example, after reading a two-dimensional code, if some undesirable conditions happen (e.g., talking from other persons, occurring other higher priority events, or others), reading a person's palm may forget or resulting in cancellation of the reading job. If this kind of conditions happen, the reading and authentication jobs may be suspended or result in failure, thus lowering effectiveness and reliably of such jobs. In addition, the technique disclosed by the patent literature 2 needs mutually separate structures, i.e., the two-dimensional code and an authentication object (person's palm), thus making it larger in size mediums being read.
However, in this respect, in the fifth aspect, an image in the image region and the comparison data associated with the image are expressed in the same information code. Hence, these image and data can be imaged at the same time, improving the various difficulties caused by the patent literature 2.
Further, in the sixth aspect, the information code reader can read the information code, during which time information recorded by the cells in the data recording region is read and an image in the image region (which is an image different from the cell image) is also recognized. Hence, described above, an image other than the cells can be utilized by applications except for interpreting the data recording region.
Furthermore, in producing the information code, data used for processing images are recorded in the data recording region. The reader uses the data from the data recording region to process an image provided in the image region. It is thus possible to process the image in association with data recorded in the recording region, not simply processing the image in the image region. Accordingly, for using the image in the image region, a degree of freedom of the use increases, widening applications of the image in the image region.
In the accompanying drawings:
Referring to the accompanying drawings, various types of embodiments of the present invention will now be described.
Referring to the drawings, a first embodiment of the present invention will now be described.
(Information Code Producing Apparatus)
The information code producing apparatus 2 is configured by an information processing apparatus, which is a personal computer for example. This apparatus 2 is provided with a controller 3 including a CPU, an operation unit 4 including a key board, a mouse and other input devices, and a storage 5 including memory devices such as a ROM, a RAM, a HDD, and nonvolatile memories. The apparatus 2 further includes a display unit 6 equipped with known display devices (such as a liquid crystal display and/or other types of display devices), a communication unit 7 functioning as a communication interface to and from external devices via wired or wireless communication, and a printer 8 (printing device). The printer 8 is similar in hardware to known printers and is capable of printing the information code 100 and necessary information in reply to printing data sent from the controller 3.
(Information Code Reader)
The overall configuration of the information code reader 10 will now be described. As shown in
The information code reader 10 includes, as its main components, an optical system provided with illuminating sources 21, a light receiving sensor 23, a filer 25 and an imaging lens 27; a microcomputer system (hereinafter called “a microcomputer”) provided with memories 35, a control circuit 40, an operation switch 42, and a liquid crystal display 46; and a power supply system provided with a power switch 41 and a battery 49. These components are mounted on not-shown printed boards and/or implemented in the case (not shown), and assembled integrally with the case (chassis).
The optical system is configured to include the illuminating sources 21, light receiving sensor 23, filter 25 and imaging lens 27. The illuminating sources 21 function as light sources capable of emitting illuminating light Lf, and, for example, include red LEDs and lens systems disposed on the output side of the LEDs, in which the lens system include diffusing lenses and collecting lenses. In the present embodiment, the illuminating sources 21 are arranged on both sides of the light receiving sensor 23 and are able to emit the illuminating light Lf towards an object R being read via a reading opening (not shown) of the case. The object R being read is a medium carrying an information code or a medium in or on which an information code is formed or mapped. The object R being read may be various objects such as resin materials or metal materials, and an information code 100 (later described), which are as shown in
The light receiving sensor 23 is provided as one example of an imaging unit capable of imaging the information code 100 (which will be described later) and is able to receive reflected light Lr coming from the object R being read and the information code 100 which reflect the illuminating light. This light receiving sensor 23 is for example an area sensor in which light-receiving elements are arranged two-dimensionally, such elements being solid-state image sensing devices such as C-MOSs or CCDs. The light receiving sensor 23 is mounted on a not-shown printed circuit board and has a light receiving window 23a through which incident light arrives through the imaging lens 27, so that the sensor is able to receive the incident light.
The filter 25 is an optical low-pass filter disposed between the reading opening (not shown) of the case and the imaging lens 27. The filter 25 is able to, for example, allow to pass therethrough light whose wavelengths is equal to or less than a designated wavelength corresponding to the reflected light Lf and, in contrast, cut off light whose wavelength is over the designated wavelength. Hence unnecessary light components whose wavelengths are over that of the reflected light Lr are suppressed from incoming into the light receiving sensor 23. The imaging lens 27 is, by way of example, configured to include a lens barrel and a plurality of collecting lenses accommodated in the lens barrel. In the present embodiment, the imaging lens is configured to collect the reflected light Lr incoming through the reading opening (not shown) of the case, and form a code image of the information code 100 on the light receiving window 23a of the light receiving sensor 23.
The microcomputer system includes an amplifying circuit 31, an A/D converting circuit 33, a memory 35, an address generating circuit 36, a synchronization signal generating circuit 38, a control circuit 40, a power switch 42, an LED 43, a buzzer 44, a liquid crystal display 46, a communication interface 48, and other necessary components. In the microcomputer system, the control circuit 40 functioning as a microcomputer (i.e., information processing unit) and the memory 35 are key components in the function thereof, and image signals of the information code 100 imaged by the foregoing optical system can be processed.
An image signal (which is an analogue signal) outputted from the light receiving sensor 23 of the optical system is provided to the amplifying circuit 31 to be amplified there with a predetermined gain, and the amplified signal is then provided to the A/D converting circuit 33 to be converted to a digital signal from the analogue signal. The digitalized image signal, that is, image data (i.e., image information) is provided to the memory 35 so that the image data is stored in an image data storage area of the memory 35. The synchronization signal generating circuit 38 is configured to generate a synchronization signal sent to both the light receiving sensor 23 and the address generating circuit 36. The address generating circuit 36 is configured to generate addresses at which the image data are stored at the designated addresses in the memory 35, in response to the synchronization signal coming from the synchronization signal generating circuit 38.
The memory 35 is composed of memory devices such as semiconductor memory devices, which include RAMs (DRAMs, SRAMs, etc.) and ROMs (EPROMs, EEROMs, etc.). The RAMs of the memory 35 are arranged to provide not only the image data storage area, described above, but also an operation area and a reading condition table which are used during processing for arithmetic calculations and logic calculations performed by the control circuit 40. In the ROMs, system programs are stored in advance, which include predetermined programs assigned to a later-described reading process and other necessary programs, and which are used to control hardware components including the illuminating light sources 21 and the light receiving sensor 23.
The control circuit 40 is provided with a microcomputer configured to be able to control the information code reader 10, and the microcomputer includes a CPU, a system bus, and an input/output interface, whereby the microcomputer provides an information processing function. In the control circuit 40, the input/output interface is communicably connected to various input/output devices (called peripheral devices) which include, in the present embodiment, the power switch 41, the operation switch 42, the LED 43, the buzzer 44, the liquid crystal display 46 and the communication interface 48. The communication interface 48 is communicably connectable to the host computer HST and/or other systems which are provided as host systems of the information code reader 10.
The power system includes the power switch 41 and the battery 49, in which the power switch 41 can be turn on/off to control connection/disconnection of paths for drive voltage from the battery 49 to the foregoing devices and circuits, which is under control of the control circuit 40. The battery 49 is composed of a secondary battery capable of generating a predetermined DC voltage, and this battery is for example a lithium-ion battery.
(Information Code)
With reference to
Specifically the plurality of cells 102 are arranged or mapped according to a predetermined rule, so that the outer contours of some cells among those cells produce series of those contours which draw a square, rectangular, or other-shape area on or in a medium R differentiablly from the background. This area becomes the code area REG. Of course, when this information code is read, it is necessary that there is a quiet zone (margin) around the code area REG.
In the example shown in
In the information code 100, there are provided a specification pattern region, a data recording region, and an error correction code recording region in its rectangular code (e.g., square, rectangular or any other shapes) code area. In the specification pattern region, predetermined-shaped specification patterns (practically, fixed-figure region wider in area than a single cell) are arranged. In the data recording region, data are recorded by the plurality of types of cells 102 and in the error correction code recording region, error correction codes are recorded by the plurality of types of cells 102. As shown in
In this way, at the predetermined positions in the code area of the information code 100, there are arranged the fixed-shaped specification patterns (i.e., the position detecting patterns 104, timing patterns 106 and alignment patterns 108 (omitted from
The reader 10 may use many methods to interpret the number of lines and the number of columns, which are composed of cells, of the information code 100, the shapes and positions of the specification patterns, the position of format information, candidate positions of code words (i.e., addresses specifying the arrangement order of code words), and others. For example, a plurality of versions may be set depending on types of the information code 100, where, for each of the versions, the number of lines of cells and the number of columns of cells, the shapes and positions of the specification patterns, the positions of format information, and candidate positions (addresses)) of code words may be predetermined. When version information is arranged at predetermined positions (reserved regions) in the code area, the reader 10 can read the version information at the predetermined positions. Based on this version information, the reader 10 can understand the number of lines of cells and the number of columns of cells, the shapes and positions of the specification patterns, the position of the format information, the candidate positions (addresses) of code words in the information code 100. The reader 10 may use an alternative approach to understand the foregoing pieces of information.
In addition, inside the code area, the free space 110 is formed to have a size larger than the size of the single cell 102. This free space 110 is located at a region other than the specification pattern regions, the data recording region, and the error correction code recording regions. The free space 110 can be set as a region in which data on the cells 102 are not recorded and to which error correction on error correction codes are not applied. In the example shown in
The region into which no data is recorded by the cells 102 is defined as a region in which code words including data code words and error correction code words are not recorded and the format information is not recorded. Moreover, the region to which the error correction using error correction codes is not applied means a region to which the error correction using error correction codes recorded in the error correction code recording region is applied. In consequence, even when some sort of information (which is, for example, additional information described later in the present disclosure) is recorded in the free space 110, that information is not subjected to the error correction which uses error correction codes recorded in the error correction code recording region located around the free space 110.
In the following, a representative example will be explained in which a code configuration assigned to a predetermined version drawn as the right figure in
On the right figure of
The format information (type information) is configured as shown in
The format information shown in
Meanwhile, in the information code 100 shown in
For any type selected from the models 1 and 2 on a known standard and the information code 100, the formal information is configured such that check digits for a correction level (correction level information) for recording and a mask number are included in the format information, and making for the selected type is then applied to the format information. Practically, the mask pattern for each type is used to be subjected to the format information using a known masking process, resulting in that an arrangement of light cells and dark cells, corresponding to a masked bit pattern, is recorded at the predetermined positions 105.
Accordingly, when the format information is masked by a specified mask (in
In contrast, if the cell data at the predetermined positions in the information code 100 are un-masked based on the masks for the model 1 or 2, the check digits are produced differently from the originally added check digits. It can thus be determined that an information code is not according to the known models 1 and 2.
In this information code 100, the specification patterns (such as the position detecting patterns 104) are detected, and the same method as that for known QR codes is used to specify the direction of the code and the positions of the respective cells, before the format information recorded at the predestined positions are interpreted using the same method as that for the known QR codes. The type of a mask which has been disclosed through the interpretation provides the type of the information code 100, i.e., the type of this code is a special type with the free space 110. The interpreted format information results in determining both an error correction level used in the information code 100 and the type of a mask applied to the code word region (i.e., a region in which data code words and error correction code words are recorded by cells).
Moreover, inside the free space 110, identification indications (markings 121a) are written or arranged to show the extent of the image region 121, whereby users can write information into the image region after producing the code or during use of the code. The inside area of the markings 121a is painted or drawn in one or more colors (for example, white), while the marking 121a is delineated in a predetermined color (for example, black) which is different from the inside area of the image region 121. Hence, the marking 121a serves as an identification indication. Hence, it is possible for users to write information into the image region 121 with use of a different color from the inside background of the image region 121. When writing is done in such a way, the reader 10 can recognize the written information based a difference between the hues or the luminance levels.
In the example shown in
Contents recorded in the information code 100 are formatted into a data arrangement as shown in
In the data format shown in
In the example shown in
Practically, when the rectangular information code 100 shown in
Furthermore, the input data (i.e., data words being interpreted) are followed by error correction code words (ECC words) which are error correction codes. In the information code 100, a region in which the error correction codes are recorded functions as an error correction code recording region. As a method of producing error correction codes (i.e., error correction code words) based on the data words (i.e., the header data and the input data (which are data to be interpreted) in the example shown in
Moreover, in the information code 100, the respective data words (data code words) expressing data being interpreted (object data to be outputted) and the error correction code words are arranged or mapped within the code area on the basis of predetermined arrangement position information. In this configuration, as shown in
Specifically, in the case of the version of the other type of code 120 (in this case, a known QR code) where the version is specified by the header data shown in
The arrangement position information (the arrangement conversion table) shown in
Thus, in interpreting the information code 100, the code words at the arrangement candidate positions in the code area, i.e., the addressed code words in the code area, are re-arranged to arrangement positions in the other type of code 120 which arrangement positions are specified by the arrangement position information (i.e., the arrangement conversion table). The other type of code 120 thus re-arranged is then subjected to interpretation based on a known interpretation method.
For example, by using the arrangement conversion table shown
It is preferable that the arrangement position information (the arrangement conversion table) is owned, as common data (a common arrangement conversion table), by both the information code producing apparatus 2 producing the information code 100 and the information code reader 10 reading the information code 100.
(Information Code Production Process)
Next, an information code production process and an information code production method will be described with reference to
The information code production process in
After obtaining the data at S1, the information code production apparatus 2 determines the method for compressing the obtained data, using a publically known method (S2). The information code production apparatus 2 then expresses the data in which the input data is compressed (data to be interpreted) by a plurality of data words (data code words) (S3). After S3, the information code production apparatus 2 determines whether or not the code type data obtained at S1 indicates the type (frame QR) of the information code 100 having the free space 110. When determined that the code type data obtained at S1 indicates the type (frame QR) of the information code 100 having the free space 110, the information code production apparatus 2 proceeds to Yes at S4. The information code production apparatus 2 produces unique header data (described above) used in the type (frame QR) of the information code 100 having the free space 110, and sets the produced header data at the head of the data arrangement including the plurality of data words, as in
When proceeding to No at S4, the information code producing apparatus 2 produces an error correction code using a publically known method, based on the configuration of the data words (data code words) produced at S3. The information code producing apparatus 2 produces a plurality of error correction words (error correction code words) expressing the error correction code (S6). Meanwhile, when proceeding from S4 to S5, the information code producing apparatus 2 produces the error correction code using a publically known method, based on the configuration of the final data words (a plurality of data code words expressing the header data and the input data) produced at S3 and S5, and produces a plurality of error correction words (error correction code words) expressing the error correction code (S6).
After S6, the information code producing apparatus 2 determines whether or not the code type data obtained at S1 indicates the type (frame QR) of the information code 100 having the free space 110 (S7). When determined that the code type data obtained at S1 does not indicate the type (frame QR) of the information code 100 having the free space 110, the information code producing apparatus 2 proceeds to No at S7. The information code producing apparatus 2 produces a two-dimensional code (such as a QR code) using a publically known method. When proceeding to No at S7, the information code producing apparatus 2 determines the version of the two-dimensional code having a size capable of storing the data words (data code words) produced at S3 and the error correction words (error correction code words) produced at S6 (in this example, the version having a size capable of storing the data words produced at S3 and the error correction words produced at S6, among the plurality of versions of the standardized, publically known QR code). Based on an arrangement pattern determined in advance by the version, the information code producing apparatus 2 arranges the data words produced at S3 and the error correction words produced at S6 (S9).
Meanwhile, when the code type data obtained at S1 indicates the type (frame QR) of the information code 100 having the free space 110, the information code producing apparatus 2 proceeds to Yes at S7. The information code producing apparatus 2 determines the version of the information code 100 that is capable of storing the data words (data code words) produced at S3 and S5, the error correction words (error correction code words) produced at S6, and the free space (S10). The size of the free space may be a fixed size determined in advance. Alternatively, the size of the free space may be designated by user input or the like at a stage preceding S10. In addition, the size of the free space may be specified in terms of the numbers of rows and columns. Alternatively, the size of the free space may be specified by information such as the number of words to which the free space amounts, or the number of cells to which the free space amounts. In the examples in
After S10, the information code producing apparatus 2 arranges the data words (data code words) produced at S3 and S5 and the error correction words (error correction code words) produced at S6 based on the above-described arrangement position information (arrangement conversion table). In the information code producing apparatus 2, the above-described arrangement position information (arrangement conversion table) is stored in the storage 5. In the arrangement conversion table, as described above, each arrangement position (the arrangement position of each of the code words aligned in the sequence) determined in the other type of code 120 is associated with a candidate position (arrangement candidate position of each code word) determined in advance in the information code 100. In the process at S11, the information code producing apparatus 2 identifies the arrangement position of each code word (each of the code words aligned in the sequence) when the code words to be recorded (the data words (data code words) produced at S3 and S5 and the error correction words (error correction code words) produced at S6) are expressed by the other type of code 120 (the two-dimensional code having a size that is smaller than the information code 100, and is capable of storing the data words produced at S3 and S5 and the error correction words (error correction code words) produced at S6) shown in
In other words, if considering only the data words produced at S3 and S5 and the error correction words produced at S6, the data words and the error correction words can be expressed by the other type of code 120 (configured as a publically known QR code) having a smaller size than the information code 100. However, when the data words produced at S3 and S5, the error correction words produced at S6, and the free space 110 are to be stored, the data words, the error correction words, and the free space 110 are required to be expressed by the information code 100 having a larger size. Therefore, according to the present embodiment, the data words produced at S3 and S5, the error correction words produced at S6, and the free space 110 are expressed by the information code 100 having a larger size than the other type of code 120. The correspondence between the arrangement of the code words when the data words produced at S3 and S5 and the error correction words produced at S6 are expressed by the other type of code 120 (the publically known QR code) and the arrangement of the code words when storing in the information code 100 that has a larger size is able to be identified by the arrangement conversion table determined in advance.
In the present configuration, the “arrangement conversion table” such as that in
After S9 or S11, the information code producing apparatus 2 determines the mask pattern to be applied to the code words of which the arrangement locations have been determined at S9 or S11, using a predetermined publically known method (such as a publically known method used for QR codes). The information code producing apparatus 2 then applies the mask using a publically known masking process method, such as to reflect the determined mask pattern in the code words for which the arrangement locations have been determined at S9 or S11 (S12). Then, the information code producing apparatus 2 calculates a check digit based on the information on the mask pattern (masking number) set at S12 and the information on error correction level, and generates format information including the error correction level, the mask number, and the check digit, as shown in
When the code type data acquired at S1 indicates the type (frame QR) of the information code 100 having the free space 110, the information code producing apparatus 2 proceeds to Yes at S14. The information code producing apparatus 2 performs a masking process to reflect the above-described specified mask (frame QR mask) in the format information produced at S13 (see
After configuring the specification pattern regions, the data recording region, and the error correction region as described above, the information code producing apparatus 2 arranges the constituent elements of the free space 110 (S18). In the example in
In the example described above, the position (position of the image region), shape, and color of the image region, and the shape, color, and the like of the differentiated display, included in the header data in
After producing the information code 100 or another two-dimensional code in this way, the information code producing apparatus 2 prints the code by the printing unit 8 (S19). At S19, rather than printing, the information code producing apparatus 2 may display the information code 100 or the like in the display unit 6. Alternatively, the information code producing apparatus 2 may transmit data of the information code 100 produced by the processes up to S17 to an external apparatus (for example, an information apparatus such as a mobile terminal or a computer).
In
In the present configuration, the control unit 3 of the information code producing apparatus 2 corresponds to an example of a “data recording region generating unit”. When the free space 110 is to be provided within the code region of the information code 100, the data recording region is generated such that the format information is recorded in a predetermined position within the code region in a specific format configuration, and each data word expressing the data to be interpreted (input data) obtained by the data obtaining unit is arranged based on the arrangement position information recorded in the arrangement position information recording unit. In addition, in the “data recording region generating unit” configured by the control unit 3, when the free space 110 is to be provided within the code region, the cell arrangement in the predetermined position 105 is configured in a state in which the mask pattern of a predetermined type (specific mask) is reflected.
(Information Code Reading Process)
Next, a process that is performed when the information code reader 10 in
The reading process in
When a contour shape detection process such as this is performed, in a case in which an image of the information code 100 is captured, the contour shape of the information code 100 is detected. The contour shape detection method may be other methods, as long as the method is capable of detecting the shapes of the specification patterns and the contour shape of a two-dimensional code.
In the present configuration, the light receiving sensor 23 corresponds to an example of an “imaging unit” and functions to capture an image of the information code 100 produced by the information code producing apparatus 2.
When the contour shape of the information code 100 is detected and the code region of the information code 100 is extracted, the reader 10 interprets the information (format information) in the predetermined position 105 in the information code 100, and obtains the type of the captured information code and the mask correction level (S40).
Specifically, for example, the reader 10 attempts to interpret the information recorded in the predetermined position 105, as described above, by releasing the masking process based on the above-described specific mask (mask for frame QR). When the check digits match when the masking process is released using a method that enables release the mask of the above-described specific mask (in other words, when the check digit calculated based on the correction level data and the masking number data when the predetermined position 105 is interpreted, and the check digit recorded in the predetermined position 105 match), identification can be made that the type is the type of the information code 100 (the type having the free space 110). The error correction level and the masking number included in the format information can also be obtained.
When the masking process is able to be released based on the specific mask in this way (in other words, when recognition of the type (frame QR) of the information code 100 is made), the reader 10 proceeds to Yes at S41. Meanwhile, when the masking process is able to be released by a mask other than the specific mask (mask for frame QR), such as the mask for model 1 or the mask for model 2 shown in
When proceeding to Yes at S41, first, the reader 10 interprets the data recorded in the data recording region (S42). Specifically, the reader 10 releases the mask on the overall code (specifically, the code word region) based on the masking number included in the format information acquired at S40. Then, the reader 10 identifies the original code size (version and format of the other type of code 120) based on the header data (frame QR header) provided at the head of the data words. The reader 10 restores the arrangement from that of the information code 100, such as that shown in the right-hand drawing in
In the present configuration, the control circuit 40 corresponds to an example of a “determining unit”. When the image of the information code 100 is captured by the imaging unit, the control circuit 40 functions to determine whether or not the predetermined position 105 of the code region has a specific format configuration. Specifically, the control circuit 40 functions to determine whether or not a mask pattern of a predetermined type (specific mask) is reflected in the predetermined position 105.
In addition, the control circuit 40 corresponds to an example of a “data recording region reading unit” and an “interpreting unit”. When an image of the information code 100 is captured by the imaging unit, the control unit 40 functions to read the data recorded in the data recording region based on the contents of the data recording region and the error correction code recording region in the code image of the captured information code 100. Specifically, when the determining unit determines that the predetermined position 105 has the specific format configuration (more specifically, when the mask pattern of the predetermined type is reflected in the predetermined position 105), the control circuit 40 functions to identify the position of each data word within the code region based on the correspondence information (arrangement conversion table) recorded in the correspondence information recording unit, and interpret the data to be interpreted.
The arrangement conversion table corresponds to an example of “correspondence information”. The arrangement conversion table is configured as information that determines each correspondence position within the other type of code 120 when each data word in a sequence expressed in each arrangement position in the code region is expressed by a format (a format determined by a publically known standard or the like) that is prescribed in advance in the other type of code 120 that differs from the information code 100. When the determining unit determines that the predetermined position 105 has the specific format configuration, the control circuit 40 corresponding to the interpreting unit then functions to interpret the other type of code 120 in a configuration in which the data word in the sequence expressed in each arrangement position in the code region is converted to each correspondence position within the other type of code 120 determined by the correspondence information.
After interpreting the data in the data recording region at S42, the reader 10 reads the format information included in the header data (frame QR header). When determined that the format information is format information indicating “image format”, the reader 10 proceeds to Yes at S44. When determined that the format information indicates another format, the reader 10 proceeds to No at S44. In
When proceeding to Yes at S44 (in other words, when determined that the format information included in the header data (frame QR header) is the format information indicating “image format”), the reader 10 reads the image region position information (position data) included in the header data (S45). The reader 10 then identifies the position of the image region within the information code 100 (S46). Specifically, in the present configuration, a rectangular image region is assumed to be formed. At S46, the reader 10 identifies the positions of the four corners of the image region in the code image by analyzing the code image. For example, the position information of the four corners of the image region (such as a combination of the row position and the column position at each position of the four corners) is recorded as the image region position information (position data). In this case, the reader 10 can identify the positions of the four corners of the image region from the position data. In this case, the position data corresponds to position identification data that indicates the position of a region to be recognized by an image processing unit.
After identifying the positions of the four corners of the image region at S46, the reader 10 performs a process to normalize the image region (S47). In the normalization process, an image that is tilted as in
In an example of the projective transformation process, for example, the coordinates of each pixel are converted by publically known expressions below.
u=x×a+y×b+c−x×g×u−y×h×u
v=x×d+y×e+f−x×g×v−y×h×v
wherein, x and y denote the X coordinate and the Y coordinate before conversion,
a, b, c, d, e, f, g, and h denote conversion coefficients, and
u and v denote the X coordinate and the Y coordinate after conversion.
For example, the coordinates before conversion are T1 to T4 (the coordinates of the four corners identified at S46 and are known values) as in
The processes at S47 and S48 can, for example, be performed in bit map format by extracting the image region identified at S46 as a bit map image. Various publically known formats can be used in addition to the bit map format. GIF format, JPEG format, and the like may be used. Alternatively, an image file format other than the foregoing may be used.
After producing the normalized image at S47, the reader 10 performs a pattern matching process (match determination process) at S48.
In the present configuration, a master image such as that in the upper portion of
At S48, the reader 10 compares the signature image registered as described above with an image in the image region 121 normalized at S47 using a publically known pattern matching method. The reader 10 then determines whether or not the matching results match at S49. When determined that the matching results match, the reader 10 proceeds to Yes at S49. The reader 10 outputs the information in the data recording region interpreted at S42 and the determination result (information indicating a “match” when the matching results match) at S49. When determined that the matching results do not match at S49, the reader 10 performs a predetermined failure process. In this case, the reader 10 may display error information or the like. Alternatively, the reader 10 may output the data interpreted at S42 and the determination result (information indicating no match) at S49. In either case, the output may be performed such as to be displayed in, for example, a liquid crystal display unit 46, or transmitted to an external apparatus as data. Here, an example is given of a method in which the image normalized at S47 and the registered image (master image) are compared by pattern matching. However, whether or not the images match may be determined by other publically known methods, such as a method in which characteristic points of both images are compared to each other.
In the present configuration, the memory 35 corresponds to an example of a registering unit. The memory 35 functions to register a pattern image for comparison with the image in the image region 121. Specifically, a signature image in which handwritten characters are expressed as image data is registered as the pattern image.
In the present configuration, the control circuit 40 corresponds to an example of an “image processing unit”. The control circuit 40 functions to identify the position of the image region within the code image based on the position data obtained from the reading result of the data recording region by the data recording region reading unit. The control circuit 40 also functions to perform an image recognition process on the image in the image region by a method differing from that of the interpretation process of the data by the data recording region reading unit. Specifically, the control circuit 40 functions to determine whether or not the image in the image region 121 corresponds to the signature image registered in the memory 35 (registering unit) by pattern matching based on the image in the image region 121 included in the code image and the signature image registered in the memory 35 (registering unit). In addition, the control circuit 40 that corresponds to the “image recognizing unit” functions to perform image processing by extracting the image in the image region 121 as a bit map image under a condition that differentiation information is registered in the data recording region, based on the reading result of the data recording region by the data recording region reading unit. Furthermore, the control circuit 40 also functions to generate a normalized image in the image region by correcting the image in the image region 121 included in the code image, based on a specification pattern image in the specification pattern region and a cell image in at least either of the data recording region and the error correction code recording region in the code image of the information code 100 captured by the light receiving sensor 23 (imaging unit).
In the present configuration, the control circuit 40 and the communication interface 48 correspond to an example of an “output unit”. The control circuit 40 and the communication interface 48 function to output information read by the data recording region reading unit and the recognition result of the image region by the image processing unit. When output is performed by display, the control circuit 40 and the liquid crystal display unit 46 correspond to the output unit.
In the present configuration, the information code reader 10 can obtain an image formed in the image region 121, in addition to the information recorded in each cell in the data recording region, as objects to be recognized. An image other than the cells attached in the information code can be analyzed and used on the reader side.
In addition, in the present configuration, a region other than the data recording region, the error correction code recording region, and the specification pattern regions can be secured within the code region as a free space. The region can be used as the image region 121. Therefore, the present configuration is more advantageous when error correction is performed in the data recording region.
In addition, the information code producing apparatus produces the information code in which predetermined differentiation information is recorded in the data recording region. The image processing unit of the information code reader 10 performs an image recognition process on the image in the image region 121 under a condition that the differentiation information is recorded in the data recording region, based on the reading result of the data recording region by the data recording region reading unit.
In this configuration, the recognition process is not performed on the image region if the differentiation information is not recorded in the data recording region. In other words, when recognition of the image region is unnecessary, an unnecessary recognition process can be omitted by the differentiation information not being recorded in the data recording region. Conversely, when the image region is to be recognized, recognition of the image region can be carried out by the differentiation information being recorded in the data recording region.
In addition, the image processing unit of the information code reader 10 performs image processing by extracting the image in the image region 121 as a bit map image under a condition that the differentiation information is recorded in the data recording region, based on the reading result of the data recording region by the data recording region reading unit.
In this configuration, the image in the image region 121 can be selectively processed as a bit map image under a condition that differentiation information is detected. Therefore, the data recording region and the like can be analyzed using an image format suitable for decoding. Recognition in the image region 121 can be performed based on more detailed pixel data under a condition that the differentiation information is detected.
In addition, the information code reading apparatus 10 includes the registering unit that registers a pattern image used for comparison with the image in the image region 121. The image processing unit performs pattern matching based on the image in the image region 121 included in the code image and the pattern image registered in the registering unit, and determines whether or not the image in the image region 121 is the image registered in the registering unit.
In this configuration, whether or not the image formed within the information code corresponds to a pattern image that has been registered in advance can be determined. Therefore, a response that could not have been actualized by the existing information code scheme can be made, i.e., “whether or not an image within a code corresponds to a prescribed image is determined and a response is made based on the determination result”.
In addition, in the registering unit, a signature image is registered as a pattern image. The image processing unit determines whether or not the image in the image region 121 is the signature image registered in the registering unit by pattern matching based on the image in the image region 121 included in the code image and the signature image registered in the registering unit.
In this configuration, whether or not an image drawn in the information code corresponds to a signature image registered in advance can be determined. Therefore, for example, signature authentication and the like can be performed using the information code and the information code reader 10.
In addition, the image processing unit generates a normalized image in the image region 121 by correcting the image within the image region 121 included in the code image, based on a specification pattern image in the specification pattern regions and a cell image in at least either of the data recording region and the error correction recording region in the code image of the information code captured by the imaging unit.
In this configuration, using another image (such as a specification pattern image or a cell image in a recording region) configuring the code region, the image in the image region 121 can be corrected based on the other image. A recognition process can thereafter be performed on the normalized image. Therefore, even when distortion, deformation, or the like has occurred in the overall code, resulting in distortion, deformation, or the like in the image region 121, the recognition process can be performed on the image region 121 after converting the image region 121 to an appropriate image. The accuracy of the recognition process can be further improved.
In addition, the information code producing apparatus produces the information code such as to record position data in the data recording region. The position data indicates the position of the region to be recognized by the image processing unit, within the code region. The image processing unit of the information code reader 10 identifies the position of the region to be recognized within the code image based on the position data obtained from the reading result of the data recording region by the data recording region reading unit, and performs an image recognition process on the image in the region to be recognized.
In this configuration, even when data specifying the position of the image region 121 is not present within the information code reader 10 in advance, the image processing unit of the information code reader 10 can more accurately identify the position of the image region 121 within the code image.
In addition, the information code reader 10 has an output unit that outputs the information read by the data recording region reading unit and the recognition result of the image region 121 by the image processing unit.
In this configuration, the reader can output the recognition result of the image region in addition to the information recorded in advance in the data recording region. A response (output of image recognition results) that could not have been actualized by the existing information code scheme can be made.
Next, a second embodiment will be described with reference to the drawings.
The second embodiment differs from the first embodiment only in that the process in
In this example, the processes at S68 and S69 in
In the process in
As a result, the recognition result of the image region 121 can be outputted in an image file format, in addition to the interpretation result of the data recording region. A response (output of both interpreted data and image file) that could not have been actualized by the existing information code scheme can be made.
Next, a third embodiment will be described with reference to the drawings.
The third embodiment differs from the first embodiment only regarding the specific content of the image region 121 in the information code 100 and the specific method of comparison at S49. The third embodiment is identical to the first embodiment in other aspects. Therefore, descriptions of sections that are the same as those according to the first embodiment will be omitted.
In this configuration, the information code 100 is configured as a code such as that as in
In the process in
In this way, according to the present embodiment, the image processing unit determines whether or not the image in the image region is the hologram image registered in the registering unit by pattern matching based on the image in the image area included in the code image and the hologram image registered in the registering unit.
In this configuration, whether or not the image drawn in the information code corresponds to the hologram image registered in advance can be determined. Therefore, for example, hologram authentication and the like can be performed using the information code and the information code reader.
In this example, the hologram image of when the information code 100 is captured from a single predetermined direction (such as a direction perpendicular to the code formation surface) during registration may be registered in the memory 35. Whether or not the images match may be performed by comparison through pattern matching or the like of a hologram image of when the information code 100 is captured from the single predetermined direction during authentication and the registered image registered in the memory 35. Alternatively, two hologram images of when the information code 100 is captured from two predetermined directions during registration may be registered in the memory 35. Whether or not the images match may be performed by comparison through pattern matching or the like of each of two hologram images of when the information code 100 is captured from the two predetermined direction during authentication, and the registered image registered in the memory 35.
Next, a fourth embodiment will be described with reference to the drawings.
The fourth embodiment differs from the first embodiment only regarding the specific content of the image region 121 in the information code 100 and the specific method of comparison at S49. The third embodiment is identical to the first embodiment in all other ways. Therefore, descriptions of sections that are the same as those according to the first embodiment will be omitted.
In this configuration, the information code 100 is configured as a code such as that in
In the process in
In this way, according to the present embodiment, the fingerprint image is registered in the memory 35 (registering unit) as a pattern image. The image processing unit determines whether or not the image in the image region is the fingerprint image registered in the registering unit, based on the image in the image region 121 included in the code image and the fingerprint image registered in the registering unit. In this configuration, whether or not the image drawn in the information code corresponds to the fingerprint image registered in advance can be determined. Therefore, for example, fingerprint authentication or the like can be performed using the information code and the information code reader.
Next, a fifth embodiment will be described with reference to the drawings.
A system which uses an information code according to the fifth embodiment is identical to that according to the first embodiment in terms of hardware. A configuration such as that in
In the system which uses an information code according to the fifth embodiment, the information code producing apparatus 1 (see
In this configuration, the information code 200 is configured as a publically known QR code (registered trademark), other than the configuration within the free space 210. First, as in
However, as in
In addition, in the information code 200 shown in is performed with the position of the free space 210 as the error position. In this case, information indicating the position of the free space 210 may be recorded in advance in the data recording region, or in the reader 10 (
In addition, when a portion of an existing QR code (registered trademark) is configured as the free space 210 as in
In addition, the example of the differentiation information is not limited to this example. For example, a dedicated mode number may be used as the mode number. For example, in the standards regarding the QR code, the following is prescribed: 1: numeric character mode, 2: alphanumeric character mode, 3: bound mode, and the like. As a mode number such as this, 14: image recognition mode may be provided. In such an example, when the mode number 14 is set, image recognition process on the image region 121 may be performed.
In
Next, a sixth embodiment will be described.
A system which uses an information code according to the sixth embodiment is also identical to that according to the first embodiment in terms of hardware configuration. A configuration such as that shown in
In the system which uses an information code according to the sixth embodiment, the information code producing apparatus 2 (see
Other than the configuration of the free space 310, this configuration is that of a publically known data matrix code. First, as shown in
However, as shown in
In addition, in the information code 300 shown in
In addition, when a portion of an existing data matrix code is configured as the free space 310 as in
In addition, the example of the differentiation information is not limited to this example. For example, a dedicated code word may be used. As specification for data matrix codes, for example, when 0 to 128 are prescribed as ASCII characters, 233 is prescribed as bound mode, and the like, “234” may be newly prescribed as a special code word for image recognition. In such an example, when the “234” code word is included in the data in the data recording region, the image recognition process on the information region 121 may be performed. In addition, when an unused code word is present, the unused code word may be included as the differentiation information. When the unused code word is included in the data in the data recording region, the image recognition process on the information region 121 may be performed.
In
Next, a seventh embodiment of the present invention will be described.
A system which uses an information code according to the seventh embodiment is identical to that according to the first embodiment in terms of hardware. A configuration such as that in
An information code 400 used according to the seventh embodiment differs from the information code 100 according to the first embodiment only in terms of the content of the free space 410. The configurations of the specification pattern regions and the data recording region, other than the free space 410, are identical to those of the information code according to the first embodiment. The configurations of the specification pattern regions and the data recording region may be exactly the same as that according to the first embodiment. Alternatively, the arrangements thereof may slightly differ. In addition, the position of the free space 410 is not particularly limited. The free space 410 may be provided in exactly the same position as the free space 110 in the information code 100 according to the first embodiment, or in a position differing therefrom.
As shown in
In the present system, for example, the information code 400 is formed by the producing apparatus 2 in a configuration in which the position detecting patterns 104 and the graphic forms of other cells are printed on a predetermined formation subject medium 401. The formation subject medium 401 is composed of a paper material, a resin material, a metal material, or other publically known materials. For example, the formation subject medium 401 is configured in a sheet shape or a plate shape having a predetermined thickness. The formation subject medium 401 is merely required to be configured such that the information code 400 is able to be formed on one surface side, and a window portion is able to be formed. The specific shape thereof is not particularly limited. For example, a configuration in which a plurality of materials are laminated is also possible.
In the information code 400 formed by the producing apparatus 2, for example, the specification pattern regions, the data recording region, and the correction code recording region are presented in a predetermined area on the front surface 401a of the formation subject medium 401 by a publically known formation method, such as printing or direct marking. The specification pattern regions, the data recording region, and the correction code recording region formed on the formation subject medium 401 are merely required to be formed such as to be visible from the front surface 401a side. The formation positions are not limited to the front surface 401a. For example, the specification pattern regions, the data recording region, and the correction code recording region may be formed on the surface of a member composed of a paper material, a resin material, a metal material, or the like, and may then be covered by a transparent sheet-shaped or plate-shaped member being arranged thereon. In this configuration, the surface of the transparent member serves as the front surface 401a. The specification pattern regions, the data recording region, the correction code recording region, and the like are formed in a position further towards the back side (back surface side) than the surface 401a. In either case, the specific pattern regions, the data recording region, and the correction code recording region are merely required to be formed on the formation subject medium 401 in a configuration in which the specific pattern regions, the data recording region, and the correction code recording region are visible from the front surface 401a side of the formation subject medium 401.
In the formation subject medium 401, a window 403 that allows a back surface 401b side to be visible from the front surface 401a side is provided on the inner side from the outer edge portion of the code region. In the example shown in
In the information code 400 configured in this way, the image region subjected to a predetermined image recognition process by the information code reader 10 is presented within the code region. For example, as shown in
Then, an image of the information code 400 and the subject 430 that are presented as in
In the present configuration as well, the light receiving sensor 23 shown in
In the present configuration, the information code producing apparatus can form a characteristic information code in which the specification pattern regions, the data recording region, and the window portion are formed, on a formation subject medium. When the information code reader captures an image of the formation subject medium and reads the information code, the content ascertained through the window portion from the front surface side of the formation subject medium can be recognized as an image. In particular, a novel image usage method becomes possible in which, in accompaniment with reading of the information, the image of a subject (the subject ascertained through the window portion) that is not displayed in advance in the formation subject medium can be used, in addition to use of the data recorded in the data recording region. Usability by the user can be improved. In addition, when the information code is read, the position can be adjusted such that only the required area of the subject positioned to the rear of the formation subject medium appears through the window portion. The image of the required area can be selectively used. Usability is further improved regarding use of image.
As the image processing method for the image after extraction of the image in the image region (the image 410′ in the free space 410), any of the processing methods according to the above-described embodiments may be used.
Alternatively, when the producing apparatus 2 produces the information code 400, the information code 400 may be produced such that address information (such as an e-mail address specifying a destination for transmission by email, or a URL specifying an address on the Internet) specifying a transmission destination of the image in the image region is recorded in the data recording region. When a code image such as that in
As a result, when the information code reader 10 reads the information code 400, a process becomes possible in which the recognized image in the image region is automatically transmitted to the transmission destination specified by the address information recorded in the data recording region. As a result, input operation for the address information specifying the transmission destination to which the image in the image region is to be transmitted and the like are no longer required to be performed each time an information code is read. Work load, input error, and the like accompanying the input operation can be reduced with certainty.
In the above-described example, an example of the window portion 403 configured as a through-hole is given. However, the window portion is merely required to be configured such that the back side is visible. For example, the window portion 403 may be configured such that a transparent member (such as a transparent resin sheet) is arranged such as to cover the above-described quadrangular through-hole. The back side is made visible through the transparent material. In addition, the shape of the window portion 403 is not limited to a quadrangle, and may be a circle, an ellipse, a triangle, or other polygonal shapes.
Next, a first variation example according to the seventh embodiment will be described. The first variation example differs from the above-described representative example (the example in
In the first variation example, the information code 400 configured as in
As a result of the reader 10 capturing an image of the information code 400 of which the position has been adjusted and the subject (the scenery or landscape) as in
In this example as well, when the producing apparatus 2 produces the information code 400, the information code 400 may be produced such that address information (such as an e-mail address specifying a destination for transmission by email, or a URL specifying an address on the Internet) specifying a transmission destination of the image in the image region is recorded in the data recording region. When a code image such as that in
Next, a second variation example according to the seventh embodiment will be described. The second variation example differs from the above-described representative example (the example in
In the second variation example, a measurement instrument 92 such as that in the left-hand drawing in
As a result of the reader 10 capturing an image, as in
In this example as well, when the producing apparatus 2 produces the information code 400, the information code 400 may be produced such that address information (such as an e-mail address specifying a destination for transmission by email, or a URL specifying an address on the Internet) specifying a transmission destination of the image in the image region is recorded in the data recording region. When a code image such as that on the left-hand side in
Next, a third variation example according to the seventh embodiment will be described. The third variation example differs from the above-described representative example (the example in
In the third variation example, printed matter 94 such as that in the left-hand drawing in
As a result of the reader 10 capturing an image, as in
In this example as well, when the producing apparatus 2 produces the information code 400, the information code 400 may be produced such that address information (such as an e-mail address specifying a destination for transmission by email, or a URL specifying an address on the Internet) specifying a transmission destination of the image in the image region is recorded in the data recording region. When a code image such as that on the left-hand side in
Next, a fourth variation example according to the seventh embodiment will be described. The fourth variation example differs from the above-described representative example (the example in
In the fourth variation example, a lifeform 96a such as that in the left-hand drawing in
As a result of the reader 10 capturing an image, as in
In this example as well, when the producing apparatus 2 produces the information code 400, the information code 400 may be produced such that address information (such as an e-mail address specifying a destination for transmission by email, or a URL specifying an address on the Internet) specifying a transmission destination of the image in the image region is recorded in the data recording region. When a code image such as that on the left-hand side in
Next, a fifth variation example according to the seventh embodiment will be described. The fifth variation example differs from the above-described representative example (the example in
In the fifth variation example as well, the information code 400 configured as in
As a result of the reader 10 capturing an image, as in
In this example as well, when the producing apparatus 2 produces the information code 400, the information code 400 may be produced such that address information (such as an e-mail address specifying a destination for transmission by email, or a URL specifying an address on the Internet) specifying a transmission destination of the image in the image region is recorded in the data recording region. When a code image such as that in the left-hand side in
Next, an eighth embodiment will be described.
A system which uses an information code according to the eighth embodiment is identical to that according to the first embodiment in terms of hardware. A configuration such as that in
An information code 500 used according to the eighth embodiment differs from the information code 100 according to the first embodiment only in terms of the content of the free space 510. The configurations of the specification pattern regions and the data recording region, other than the free space 410, are identical to those of the information code according to the first embodiment. The configurations of the specification pattern regions and the data recording region may be exactly the same as that according to the first embodiment. Alternatively, the arrangements thereof may slightly differ. In addition, the position of the free space 510 is not particularly limited. The free space 510 may be provided in exactly the same position as the free space 110 in the information code 100 according to the first embodiment, or in a position differing therefrom.
As shown in
In the present system, for example, the information code 500 is formed by the producing apparatus 2 in a configuration in which the position detecting patterns 104 and the graphic forms of other cells are printed on a predetermined formation subject medium 501. The formation subject medium 401 is composed of a paper material, a resin material, a metal material, or other publically known materials. For example, the formation subject medium 401 is configured in a sheet shape or a plate shape having a predetermined thickness. The formation subject medium 501 is merely required to be configured such that the information code 500 is able to be formed on one surface side. The specific shape thereof is not particularly limited. For example, a configuration in which a plurality of materials are laminated is also possible.
In the information code 500 formed by the producing apparatus 2, for example, the specification pattern regions, the data recording region, and the correction code recording region are presented in a predetermined area on the front surface 501a of the formation subject medium 501 by a publically known formation method, such as printing or direct marking. The specification pattern regions, the data recording region, and the correction code recording region formed on the formation subject medium 501 are merely required to be formed such as to be visible from the front surface 501a side. The formation positions are not limited to the front surface 501a. For example, the specification pattern regions, the data recording region, and the correction code recording region may be formed on the surface of a member composed of a paper material, a resin material, a metal material, or the like, and may then be covered by a transparent sheet-shaped or plate-shaped member being arranged thereon. In this configuration, the surface of the transparent member serves as the front surface 501a. The specification pattern regions, the data recording region, the correction code recording region, and the like are formed in a position further towards the back side (back surface side) than the surface 501a. In either case, the specific pattern regions, the data recording region, and the correction code recording region are merely required to be formed on the formation subject medium 501 in a configuration in which the specific pattern regions, the data recording region, and the correction code recording region are visible from the front surface 501a side of the formation subject medium 501.
In the formation subject medium 501, a handwritten input region for enabling handwritten input to be performed is provided on the inner side from the outer edge portion of the code region. In the present configuration, an inner region in which the cells 102 are not arranged (the region further inward than the inner edge boundary of the arrangement region of the cells 102) in the information code 500 serves as the free space 510. The free space 510 is, for example, a region in which data is not recorded in the data recording region and is not subjected to error correction by the error correction region. The overall free space 510 serves as the handwritten input region. The free space 510 is, for example, a blank region of a predetermined color. Characters, graphical forms, symbols, and the like can be handwritten in the blank region using various writing tools. Graphical forms, such as a frame, and characters may be written in the free space 510 prior to handwritten input.
Then, an image of the information code 500 presented as in
In the present configuration as well, the light receiving sensor 23 shown in
As the image processing method for the image after extraction of the image in the image region (the image 510′ in the free space 510), any of the processing methods according to the above-described embodiments may be used. For example, the extracted image 510′ may be saved or transmitted in a predetermined file format (a publically known file format such as the bit map format, GIF format, or PEG format). Alternatively, a publically known character recognition process may be performed on the extracted image 510′, and data on the handwritten characters and symbols may be obtained.
In addition, when the producing apparatus 2 produces the information code 500, the information code 500 may be produced such that address information (such as an e-mail address specifying a destination for transmission by email, or a URL specifying an address on the Internet) specifying a transmission destination of the image in the image region or data analyzed from the image is recorded in the data recording region. When a code image such as that in
In this configuration as well, when the information code reader 10 reads the information code 500, a process becomes possible in which the recognized image in the image region or data analyzed from the image is automatically transmitted to the transmission destination specified by the address information recorded in the data recording region. As a result, input operation for the address information specifying the transmission destination to which the image in the image region or the analyzed image thereof is to be transmitted and the like are no longer required to be performed each time an information code is read. Work load, input error, and the like accompanying the input operation can be reduced with certainty.
In the present configuration, a characteristic information code 500 in which the specification pattern regions, the data recording region, and the handwritten input region are provided can be formed on the formation subject medium 501 by the information code producing apparatus 2. When the information code reader 10 captures an image of the formation subject medium 501 and reads the information code 500, the content inputted by hand in the handwritten input region (free space 510) can be subsequently used. In particular, a region of which the position is clearly prescribed in advance can be used as the handwritten region. Therefore, compared to a method in which handwritten characters and the like are simply captured in an image, only the handwritten information within a required region can be extracted with accuracy. Complicated operations involved in the extraction can be more easily omitted.
Next, a ninth embodiment will be described. First, a representative example according to the ninth embodiment will be described.
A system which uses an information code according to the ninth embodiment is also identical to that according to the first embodiment in terms of hardware. A configuration such as that in
, Furthermore, the reader 10 such as that in
Here, the information code 100 used in the present configuration will be described. As shown in
Furthermore, in the present configuration, when the information code producing apparatus 2 in
Here, the comparison data recorded in the data recording region will be described. In the present configuration, during the reading process described hereafter, fingerprint verification is performed by a publically known fingerprint verification method (such as a characteristic point extraction method (minutia method), a pattern matching method, or a frequency analysis method). In advance registration, registered fingerprint data to be used in fingerprint verification is generated as the comparison data. Hereafter, an instance in which the characteristic point extraction method is used as the fingerprint verification method will be described as a representative example.
In advance registration, for example, a registrant is asked to stamp a fingerprint. The registrant stamps the fingerprint in a predetermined color on a stamping material, such as a paper material, a resin material, or a metal material. An image of the fingerprint (the graphical form of the fingerprint stamped by the registrant pressing a finger onto the surface of the stamping material) is captured by the reader 10 or another camera. Alternatively, an image of the fingertip of the registrant is directly captured by the reader 10 or another camera, and an image of the fingerprint is thereby obtained. Then, when the characteristic point extraction method (minutia method) is used, the shapes of the characteristic points are prescribed in advance. The prescribed characteristic points are extracted from the fingerprint image of the registrant obtained through the above-described operation. In the present configuration, a “branching point” and an “edge point” are prescribed as the shapes of the characteristic points. In
Each characteristic point (branching point and edge point) scattered as shown in
Then, the registered fingerprint data is generated based on the type, X coordinate value, and Y coordinate value of each characteristic point detected and calculated as described above. Specifically, as shown in
In the present configuration, for example, reading of the information code and authentication are performed by a flow such as that in
The reader 10 then analyzes the image in the image region (free space 110) cut out in this way and extracts the characteristic points (S83). The method for extracting the characteristic points at S83 is similar to that for advance registration. For example, when the fingerprint image such as that in
When determined through the comparison process (determination process) at S84 that the data on the characteristic points extracted at S83 and the data (comparison data) on the characteristic points read from the data recording region at S81 match, the reader 10 proceeds to Yes at S85 and determines authentication to be successful (S86). In this case, the reader 10 may give notification that the authentication is successful (such as by an authentication successful message display or output of authentication successful audio information.) Conversely, when determined through the comparison process (determination process) at S84 that the data on the characteristic points extracted at S83 and the data (comparison data) on the characteristic points read from the data recording region at S81 do not match, the reader 10 proceeds to No at S85 and determines that an error has occurred (S87). In this case, the reader 10 may give notification that an error has occurred (such as by an error message display or output of error audio information).
In the present configuration as well, the light receiving sensor 23 corresponds to the imaging unit. In addition, the control unit 40 corresponds to an example of the data recording region reading unit. When an image of the information code 100 is captured by the light receiving sensor 23 (imaging unit), the control circuit 40 functions to read the data recorded in the data recording region.
In addition, the control circuit 40 corresponds to an example of the image processing unit. The control circuit 40 functions to perform predetermined image processing on the image in the image region (image in the free space 110) in the code image of the information code 100 that has been captured by the light receiving sensor 23 (imaging unit). Specifically, the control circuit 40 performs a determination process regarding whether or not the image in the image region (image in the free space 110) corresponds to a predetermined legitimate image using the comparison data (data to be used) read by the data recording region reading unit. Specifically, the control circuit 40 performs a predetermined characteristic point extraction process (S38) on the image in the image region (image in the free space 110). The control circuit 40 compares the characteristic points in the image region (free space 110) extracted by the characteristic point extraction process and the reference characteristic point data (comparison data) recorded in the data recording region, and determines whether or not the characteristic points match. As a result, the control circuit 40 determines whether or not the image in the image region (image in the free space 110) corresponds to the legitimate image (the image of the fingerprint from which the reference characteristic point data recorded in the data recording region is generated).
In addition, in the present configuration, in the information code reader 10, the light receiving sensor 23 (imaging unit) and the control circuit 40 that functions as the data recording region reading unit and the image processing unit are integrally provided such as to be assembled in a case (housing) (not shown). The light receiving sensor 23 (imaging unit) and the control circuit 40 that functions as the data recording region reading unit and the image processing unit can be integrally recognized and operated. Authentication can also be completed within the apparatus.
In the present configuration, the image to be used (image in the free region 110) and the comparison data to be used for comparison can be obtained at the same time by a single imaging operation. Therefore, the image (image in the image region) and the data (comparison data) to be associated with each other can be accurately obtained. Operation time and processing time can also be easily shortened. Furthermore, the size of the medium to be read can be more easily reduced. In addition, authentication can be performed using the comparison data recorded in the data recording region. Therefore, access to a server or the like becomes unnecessary. Authentication can be performed with no difficulty even in an environment in which communication with a server is not possible or an environment in which communication with a server is difficult.
In the example described above, an example is given in which the position data specifying the positions of the characteristic points (a plurality of reference characteristic points) obtained through advance registration is recorded in the data recording region as comparison data. However, a configuration is also possible in which the number of characteristic points (a plurality of reference characteristic points) obtained through advance registration is recorded in the data recording region as comparison data. In this case, in the comparison process at S83, whether or not the number of characteristic points recorded in the data recording region and the number of characteristic points extracted at S83 match may be determined. When the numbers of characteristic points match, the reader 10 may proceed to Yes at S85. When the numbers of characteristic points do not match, the reader 10 may proceed to No at S85.
Next, a first variation example according to the ninth embodiment will be described.
The first variation example differs from the representative example according to the ninth embodiment only in terms of the specific content in the free space 110 and the specific content of the comparison data recorded in the data recording region. Other aspects are identical to those of the representative example according to the ninth embodiment.
In this example, the information code producing apparatus 2 produces the information code 100 such as that in
In this example, in advance registration, a registrant is asked in advance to write, by hand, signature characters (handwritten characters). The registrant writes the signature characters on the surface of a writing material, such as a paper material, a resin material, or a metal material. An image of the signature characters is captured by the reader 10 or another camera. Alternatively, the image of the signature characters may be obtained by pen input using a touch panel or the like. The characteristic point extraction method (minutia method) similar to that for fingerprint verification, described above, is used. The shapes of characteristic points are prescribed in advance. The prescribed characteristic points are extracted from the signature image of the registrant obtained through the above-described operation. In this example as well, the branching points (position at which a line branches out) and the edge points (position at the end portion of a line) similar to those in the representative example can be prescribed as the shapes of the characteristic points. In
Each characteristic point P1 (branching point and edge point) scattered as shown in
Then, the registered signature data (comparison data) is generated based on the type, X coordinate value, and Y coordinate value of each characteristic point detected and calculated as described above. Specifically, by a method similar to that in
Next, a second variation example according to the ninth embodiment will be described.
The second variation example differs from the representative example according to the ninth embodiment only in terms of the specific content in the free space 110 and the specific content of the comparison data recorded in the data recording region. Other aspects are identical to those of the representative.
In this example as well, the information code producing apparatus 2 produces the information code 100 such as that in
In this example, in advance registration, a registrant is asked in advance to stamp a stamp seal. The registrant stamps the stamp seal by pressing the stamp seal onto the surface of a forming material, such as a paper material, a resin material, or a metal material. An image of the stamp seal is captured by the reader 10 or another camera. The characteristic point extraction method (minutia method) similar to that for fingerprint verification, described above, is used. The shapes of characteristic points are prescribed in advance. The prescribed characteristic points are extracted from the stamp seal image of the registrant obtained through the above-described operation. In this example as well, the “branching points” and the “edge points” similar to those in the representative example and the first variation example can be prescribed as the shapes of the characteristic points. In
In advance registration, each characteristic point (branching point and edge point) scattered as shown in
Then, the registered stamp seal data is generated based on the type, X coordinate value, and Y coordinate value of each characteristic point detected and calculated as described above. Specifically, by a method similar to that in
Next, a third variation example according to the ninth embodiment will be described.
The third variation example differs from the representative example according to the ninth embodiment only in terms of the specific content in the free space 110 and the specific content of the comparison data recorded in the data recording region. Other aspects are identical to those of the representative example according to the ninth embodiment.
In this example as well, the information code producing apparatus 2 produces the information code 100 similar to that in
In an example such as this, when the reading process such as that in
In the present configuration as well, the control circuit 40 corresponds to the image processing unit. The control circuit 40 functions to perform a recorded content recognition process to recognize at least any of a numeric character, character, symbol, or graphic form on the image in the free space 110 (image region). The control circuit 40 then functions to perform a determination process regarding whether or not the image in the free space 110 (image region) corresponds to a legitimate image (that is, an image indicating the numeric character, character, symbol, graphic form, or the like recorded in the data recording region) based on the recorded content in the free space 110 recognized by the recorded content recognition process and the specific data (the correct data on the numeric character, character, symbol, graphical form, or the like) recorded in the data recording region.
In the representative example and the first to third variation examples according to the fourth embodiment, a fingerprint, a signature, a stamp seal, and the like are given as examples of an object to be authenticated. However, a hologram may be the object to be authenticated. In this case as well, comparison data may be extracted from a hologram to be registered, using a predetermined method. The comparison data may then be recorded in the data recording region of the information code. When a hologram is attached to the free space in the information code, the data extracted from the hologram and the comparison data recorded in the data recording region may be compared, and whether or not the data match may be determined.
[Other Examples According to the Ninth Embodiment]
In the information code used in the representative example and the variation examples according to the ninth embodiment, the configurations according other embodiments described above or hereafter may be used, excluding that of the free space.
In addition, in the information code used in the representative example and the variation examples according to the ninth embodiment, the comparison data to be recorded in the data recording region may be encrypted and recorded. In this case, a shared encryption key may be stored in the producing apparatus 2 and the reader 10. The reader 10 may decode the encryption using a decoding algorithm corresponding to the encryption algorithm used for encryption by the producing apparatus. The reader 10 can thereby interpret the data to be interpreted that is recorded in the data recording region and that has been encrypted by the producing apparatus 2.
In addition, in the information code used in the representative example and the variation examples according to the ninth embodiment. Soiling and the like in the data recording region can be corrected by the error correction codes recorded in the error correction code recording region. Therefore, even should the fingerprint, signature, stamp seal, or other images run outside the free space 110, reading can be performed without difficulty even when a slight run-over occurs.
In the above-described representative example and variation examples according to the ninth embodiment, the reader 10 compares the analysis result obtained from the image in the free space 110 and the data in the data recording region, and performs authentication. However, the reader 10 may transmit the comparison data read at S81 and the analysis result read at S83 to an external apparatus. The external apparatus may then determine whether or not the comparison data and the analysis result match. For example, the processes at S84 and S85 in
In the above-described representative example and variation examples according to the ninth embodiment, the comparison data is recorded in the data recording region. However, in a configuration in which high recording capacity can be secured in the data recording region (such as when the size is large), image data indicating a portion of, or an entirety of, the image to be displayed in the image region may be recorded in the data recording region. For example, in the case of the representative example, the fingerprint image itself that has been used in advance registration may be recorded in the data recording region. In addition, in the case of the first variation example, the signature image itself that has been used in advance registration may be recorded in the data recording region. In the case of the second variation example, the stamp seal image itself that has been used in advance registration may be recorded in the data recording region. In this case, at S81, the reader 10 may read the image data recorded in the data recording region and omit the process at S83. At S84, the reader 10 may compare the image data read at S81 and the image in the free space 110 (image region) obtained at S82 by publically known pattern matching or the like, and determine whether or not the image data and the image match.
Next, a tenth embodiment will be described. First, a representative example according to the tenth embodiment will be described.
A system which uses an information code 1 according to the tenth embodiment is also identical to that according to the first embodiment in terms of hardware. A configuration such as that in
Here, the information code 100 will be described. The information code 100 processed in the present system 1 is also provided with the specification pattern regions in which specification patterns each having a shape determined advance (the regions in which the position detecting patterns 104, the timing pattern (timing cells) 106, and the alignment pattern 108 are arranged) are arranged, the data recording region in which data is recorded by cells 102 of a plurality of types, and the error correction code recording region in which error correction codes are recorded by cells 102 of a plurality of types, within the code region. An image region that shows an image differing from the cells 102 is configured such as to be presented within the code region as an area wider than the size of a single cell 102. In the example in
In the present system 1, the information code 100 such as this is used such as to be attached to a delivery slip (invoice) Pa used for deliveries and postal matter. A delivery slip (invoice) having a publically known configuration can be used as the delivery slip (invoice). The delivery slip (invoice) is provided with fields for entering the recipient address, recipient name, phone number, item name, sender address, sender name, phone number, and the like. In the present system 1, the producing apparatus 2 prints the information code on the delivery slip Pa such as this, and the information code 100 is used as a part of the delivery slip Pa. The free space 110 (image region) provided within the information code 100 is configured as a region for forming at least any of, for example, a fingerprint, a stamp seal, or a signature.
Furthermore, in the present configuration, when the information code producing apparatus 2 produces the information code 100 (specifically, that in which the free space is blank) shown in
When a delivery slip (invoice) such as this is used, first, the information code producing apparatus 2 is prepared on the operating entity side, the operating entity being that which operates the delivery or postal service. For example, the information code 100 is produced in which the URL uniquely assigned to the own company, the email address of the company, or the like is recorded in the data recording region as the address information, and the free space 110 is configured as, for example, a blank region. The information code 100 is then attached to the delivery slip Pa, such as that in
In the above-described representative example, an example is given in which the overall image in the image region (image in the free space 110) is transmitted to the transmission destination specified by the address information. However, only a portion of the image in the image region (image in the free space 110) may be transmitted. Alternatively, instead of the image in the image region (image in the free space 110), analysis data (such as characteristic point data when characteristic points are extracted from the image in the image region (image in the free space 110) by a method similar to that according to the ninth embodiment, or character data obtained by a character recognition process (OCR process) being performed on the image in the image region (image in the free space 110)) obtained by analysis of the image in the image region (image in the free space 110) may be transmitted.
In the present configuration, the control circuit 40 corresponds to an example of the image processing unit. The control circuit 40 functions to transmit to a transmission destination or save to a save-to destination specified by the address information recorded in the data recording region, at least a portion of the image in the image region (image in the free space 110) or analysis data obtained by analysis of the image in the image region. Specifically, the control circuit 40 functions to transmit to a transmission destination or save to a save-to destination specified by the address information recorded in the data recording region, at least a portion of an image of at least any of a fingerprint, a stamp seal, or a signature formed in the image region, or analysis data obtained by analysis of any of the images.
Next, a first variation example according to the tenth embodiment will be described.
The first variation example according to the tenth embodiment differs from the representative example according to the tenth embodiment only in terms of the specific content in the free space 10, the specific content of the data recorded in the data recording region, and the object to which the information code 100 is attached. In
In the present system 1, for example, the information code producing apparatus 2 is configured as a POS register that is used in a store or the like. The information code 100 is used such as to be attached to a receipt Pb that is issued by the register in a store or the like, upon purchase of an item. Regarding the receipt Pb, those of a variety of fields are applicable. For example, in the example in
In the present configuration as well, when the information code producing apparatus 2 produces the information code 100 shown in
The receipt Pb such as this is issued by the information code producing apparatus 2 when, for example, the user purchases using credit card payment. The purchase specification, total amount, date of use (not shown), and the like are displayed in the receipt Pb. When the receipt Pb such as that in
In the present configuration as well, the control circuit 40 corresponds to an example of the image processing unit. The control circuit 40 functions to transmit to the transmission destination or save to the save-to destination specified by the address information recorded in the data recording region, at least a portion of the image in the image region (image in the free space 110) or analysis data obtained by analysis of the image in the image region. Specifically, the control circuit 40 functions to transmit to a transmission destination or save to a save-to destination specified by the address information recorded in the data recording region, a signature image formed in the image region.
In addition, when the receipt Pb such as that in
In this configuration, the operation switch 42 of the reader 10 corresponds to an example of an “information input unit” that enables input of information by operation from outside. The control circuit 40 corresponds to an example of the image processing unit. The control circuit 40 functions to transmit to a transmission destination or save to a save-to destination specified in the address information, the information inputted by the information input unit and the image in the free space 110 (image region) cut out by reading of the information code 100, in association with each other. The information, such as the age group and gender, may be inputted by the operation unit 4 in the producing apparatus 2 during issue of the receipt Pb. In this case, the inputted information, such as age group and gender, may be recorded in the data recording region. Then, when the information code 100 is read, the information can be transmitted to the transmission destination or the save-to destination together with the image in the free space 110 (image region) that has been cut out.
A second variation example differs from the representative example according to the tenth embodiment only in terms of the specific content in the free space 10, the specific content of the data recorded in the data recording region, and the object to which the information code 100 is attached. Other basic configurations are similar to those in the representative example. In addition, the hardware configuration is the same as that according to the first embodiment. A configuration such as that shown in
In the example in
In the present configuration as well, when the information code producing apparatus 2 produces the information code 100 (specifically, that in which a portion of the information code 100 on the upper left in
The information code 100 that is configured in this way is used, for example, when a user wishes to register a stamp. The person performing the registration operation (a store clerk, other employees, and the like) presents the person wishing to register with the above-described personal seal registration form (in other words, the form on which the information code 100 having the blank free space 110 is attached). The person performing the registration operation then prompts the person wishing to register to attach the stamp of the personal seal the person wishes to register within the free space 110 in the information code 100, as shown in the upper left drawing in
In the present configuration as well, the control circuit 40 corresponds to an example of the image processing unit. The control circuit 40 functions to transmit to the transmission destination or save to the save-to destination (specifically, the external apparatus 90 corresponding to an authentication apparatus or another apparatus accessible by the authentication apparatus) specified by the address information recorded in the data recording region, the image in the image region (the image in the free space 110). Specifically, the control circuit 40 functions to transmit to the transmission destination or save to the save-to destination specified by the address information recorded in the data recording region, the stamp seal image formed in the free space 110 (image region).
Next, verification of the personal seal will be described. Image data on various personal seals are stored in the storage unit 93 of the external apparatus 90 in association with the respective registration numbers and personal information, as in the bottom drawing in
Meanwhile, when verification of the personal seal is performed, a person wishing for verification or the like stamps the personal seal to be verified in the free space 110 in the information code 100 printed on a procedure form Pc, such as that in
In the present configuration, the storage unit 93 of the external apparatus 90 corresponds to an example of a comparison data registering unit. The storage unit 93 is configured such as to register comparison data for comparison with at least a portion of the image in the image region or analysis data obtained by analysis of the image in the image region. In the above-described example, an example is given in which, in registration such as that in
In the present configuration, the external apparatus 90 corresponds to an example of the authentication apparatus. The external apparatus 90 functions to perform a determination process regarding whether or not the stamp seal image in the free space 110 (image region) to be verified corresponds to a predetermined legitimate image (specifically, the stamp seal image registered in advance to the external apparatus 90), based on the transmission data (such as the data of the stamp seal image transmitted as an object to be verified as in
Here, an example is given of personal seal verification performed at banks and the like. However, the invention can also be used for registered seal verification related to real estate transactions and the like.
A third variation example according to the tenth embodiment differs from the representative example according to the tenth embodiment only in terms of the specific content in the free space 10, the specific content of the data recorded in the data recording region, and the object to which the information code 100 is attached. Other basic configurations are similar to those of the representative example. In addition, the hardware configuration is the same as that according to the first embodiment. A configuration such as that shown in
In the example in
In the present configuration as well, when the information code producing apparatus 2 produces the information code 100 (specifically, that in which a portion of the information code 100 on the upper left in
The information code 100 that is configured in this way is used, for example, when a user wishes to register a fingerprint. The person performing the registration operation (a store clerk, other employees, and the like) presents the person wishing to register with the above-described fingerprint registration form (in other words, the form on which the information code 100 having the blank free space 110 is attached). The person performing the registration operation then prompts the person wishing to register to attach the fingerprint the person wishes to register within the free space 110 in the information code 100, as shown in the upper left drawing in
In the present configuration as well, the control circuit 40 corresponds to an example of the image processing unit. The control circuit 40 functions to transmit to the transmission destination or save to the save-to destination specified by the address information recorded in the data recording region, at least a portion of the image in the image region (the image in the free space 110) or analysis data obtained by analysis of the image in the image region. Specifically, the control circuit 40 functions to transmit to the transmission destination or save to the save-to destination specified by the address information recorded in the data recording region, the fingerprint image formed in the free space 110 (image region).
Next, verification of the fingerprint will be described. Image data on various fingerprints are stored in the storage unit 93 of the external apparatus 90 in association with the respective registration numbers and personal information, as in the bottom drawing in
Meanwhile, when verification of the fingerprint is performed, a person wishing for verification or the like attaches his or her own fingerprint to be verified in the free space 110 in the information code 100 printed on a procedure form Pd, such as that in
In the present configuration, the storage unit 93 of the external apparatus 90 corresponds to an example of a verification data registering unit. The storage unit 93 is configured such as to register a plurality of pieces of verification data in association with respective personal information, for comparison with at least a portion of the image in the free space 110 (image region) or analysis data obtained by analysis of the image in the image region.
In addition, the external apparatus 90 corresponds to an example of a verification apparatus. The external apparatus 90 functions to extract personal information corresponding to transmission data based on the transmission data (the fingerprint image to be verified) transmitted by the image processing unit and the plurality of pieces of verification data (such as a plurality of registered fingerprint images) registered in the verification data registering unit. In the above-described example, an example is given in which, in registration such as that in
In the information code used in the representative example and variation examples according to the tenth embodiment, configurations according to the other embodiments described above and hereafter may be used in sections other than the free space. In a configuration such as this as well, if address information similar to that in the representative example or a variation example according to the tenth embodiment, described above, is recorded within the data recording region, the image in the free space can be used in a manner similar to that the representative example and variation examples according to the tenth embodiment.
In addition, in the information code used in the representative example and variation examples according to the tenth embodiment, the configuration of the free space (image region) may be that according to the other embodiments described above and hereafter. In a configuration such as this as well, if the address information is recorded within the data recording region, at least a portion of the image in the free space (image region) or analysis data (such as characteristic point data in which characteristic points are extracted from the image in the free space (image region) by a method similar to that according to the ninth embodiment, or character data in which a character is extracted from the image in the free space (image region)) obtained by analysis of the image in the free space (image region) can be transmitted to the transmission destination or saved in the save-to destination specified by the address information recorded in the data recording region. Alternatively, an authentication result of authentication performed on the image in the free space using the data recorded in the data recording region, an authentication result of authentication performed on the image in the free space using data recorded in the reader, and the like may be transmitted to the transmission destination or saved in the save-to destination specified by the address information.
Next, an eleventh embodiment will be described. First, a representative example according to the eleventh embodiment will be described with reference to
A system which uses an information code 1 according to the eleventh embodiment is also identical to that according to the first embodiment in terms of hardware. A configuration such as that in
The information code 600 produced by the producing apparatus 2 in this way differs from the information code 100 according to the first embodiment only in terms of the content in a free space 610. The information code 600 includes all characteristics of the information code 100 according to the first embodiment, other than the image in the free space 610.
Here, the information code 600 will be described. The information code 600 processed in the present system 1 is also provided with the specification pattern regions in which specification patterns each having a shape determined advance (the regions in which the position detecting patterns 104, the timing pattern (timing cells) 106, and the alignment pattern 108 are arranged, similar to that in
In the information code 600, a hologram portion 612 is arranged in the free space 610 (image region). As shown in
Information such as that in
The information code 600 such as this can be used, for example, in an example such as that in
Meanwhile, when the item 680 is sold in a shop or the like after shipping, or when a checking operation, inventory check, or the like is performed, the reader 10 (
Next, reading and authentication of the information code 600 will be described in further detail. First, when the reader 10 reads and authenticates the information code 600, the light receiving sensor 23 (imaging unit) of the reader 10 obtains the first captured image of when the information code 600 is captured from a predetermined first direction and the second captured image of when the information code 600 is captured from a predetermined second direction. In the present configuration, for example, as in the reader 10 on the left side in
A legitimate image of the hologram portion 612 from the first direction and a legitimate image thereof from the second direction are registered in advance in the server 690, in association with the item name and serial number. Therefore, the legitimate images can be compared with the transmitted first captured image 612a and second captured image 612b by publically known pattern matching or the like. As a result, whether or not the transmitted first captured image 612a and second captured image 612b are images that have been registered in the server 690 in advance can be determined. When the images of the hologram portion transmitted from the reader 10 are the legitimate images from the first direction and the second direction corresponding to the serial number, information indicating that the authentication is successful is transmitted to the reader 10.
In the present configuration, the control circuit 40 of the reader 10 shown in
In this configuration, the information code 600 including the hologram portion 612 that is capable of generating at least two types of images can be used as a medium for authentication. The reader 10 attempts to obtain the two types of images from the hologram portion and can perform authentication based on the obtained results. Therefore, whether or not the hologram is legitimate can be more easily determined with accuracy.
In particular, conventional mechanical authentication of holograms require an elaborate, dedicated apparatus. However, in the present configuration, reading positions and angles can be easily determined based on the specification patterns and the like configuring the information code, as a result of the hologram being adhered to the code. Mechanical authentication of holograms can be performed using general purpose equipment such as a hand-held scanner or a mobile phone.
In addition, adhering operation and management of information codes and holograms, which where separately managed in the past, can be integrated, and work efficiency can be improved. In addition, association between the information code and hologram can be more easily and accurately performed.
In addition, in the present configuration, a person can easily visually confirm the hologram portion 612, and visual confirmation can be used in combination with the above-described mechanical confirmation.
A unique ID may be recorded in the data recording region. A unique hologram corresponding to the unique ID may be arranged in the hologram portion 612. In this way, if a hologram/light reflective material that differs for each information code is adhered, the content thereof is registered in a server, and individual authentication of the hologram is performed during reading, higher anti-counterfeiting effect can be achieved.
Next, a first variation example according to the eleventh embodiment will be described with reference to
The first variation example differs from the representative example according to the eleventh embodiment only in terms of the specific content of the hologram portion 612. Other aspects are similar to those of the representative example according to the eleventh embodiment.
The information code 600 in the first variation example is identical to that in the representative example, other than the hologram portion 612. The information code 600 includes all characteristics of that in the representative example. Additional characteristics are added to the hologram portion 612. In addition, the reading method and authentication method of the information code 600 is identical to that in the representative example. The use of an optical filter 620 during reading is the only addition.
In the information code 600 in
In an example such as this, when authentication of the information code 600 is performed, the light receiving sensor 23 (imaging unit) of the information code reader 10 captures an image of the information code 600 through the optical filter 620. The process is identical to that in the representative example other than the use of the optical filter 620. The reader 10 obtains the first captured image in which the information code 600 is captured from the predetermined first direction and the second captured image in which the information code 600 is captured from the predetermined second direction. Authentication is then performed in a manner similar to that in the representative example.
In the present configuration, the control circuit 40 in the reader 10 in
In the present configuration, the information code having the characteristic hologram portion that generates a predetermined image when captured through an optical filter can be used as a medium for authentication. The reader can attempt to obtain the predetermined image from the captured image obtained through the optical filter, and perform authentication based on the obtained results. Therefore, whether or not the hologram is legitimate can be more easily and accurately determined.
Next, a second variation example according to the eleventh embodiment will be described with reference to
The second variation example differs from the representative example according to the eleventh embodiment only in terms of the specific content of the hologram portion 612. Other aspects are similar to those of the representative example according to the eleventh embodiment.
The information code 600 in the second variation example is identical to that in the representative example, other than the hologram portion 612. The information code 600 includes all characteristics of that in the representative example. Additional characteristics are added to the hologram portion 612. In addition, the reading method and authentication method of the information code 600 is identical to that in the representative example. Capturing an image of the hologram portion 612 by a specific imaging method is the only addition.
The information code 600 in
In an example such as this, when authentication of the information code 600 is performed, the imaging unit of the information code reader 10 captures an image of the information code 600 by the above-described predetermined imaging method. The process is identical to that in the representative example, other than the imaging method. The reader 10 obtains the first captured image in which the information code 600 is captured from the predetermined first direction and the second captured image in which the information code 600 is captured from the predetermined second direction. Authentication is then performed in a manner similar to that in the representative example. In this case, when authentication is performed using a method similar to that in the representative example, a determination that authentication is successful can be made under conditions that matching of the hologram images is confirmed and display of the pattern 630 is confirmed.
In the present configuration, the control circuit 40 in the reader 10 in
In the present configuration, an information code having a special display portion in which a predetermined display appears when imaging is performed by a predetermined imaging method determined in advance and the predetermined display does not appear when imaging is performed by a method other than the predetermined imaging method can be used as a medium for authentication. The reader can attempt to confirm the predetermined display in the special display portion in the captured image when imaging is performed by the predetermined imaging method, and perform authentication based on the obtained results. Therefore, whether or not the hologram is legitimate can be more easily and accurately determined.
Next, a twelfth embodiment will be described.
A system which uses an information code 1 according to the eleventh embodiment is also identical to that according to the first embodiment in terms of hardware. A configuration such as that in
The information code 700 produced by the producing apparatus 2 in this way differs from the information code 100 according to the first embodiment only in terms of the content in the free space 710. The information code 700 includes all characteristics of the information code 100 according to the first embodiment, other than the image in the free space 710.
As shown in
As shown in
In addition, related content indicating at least either an image or information corresponding to the augmented reality image of a display candidate is displayed in a position other than the region in which the reality marker is displayed. In the example in
Address information (such as a URL) corresponding to a management apparatus 790 in which augmented reality images are collected is recorded in the data recording region of the information code. In the present configuration, the reader 10 configured as an information terminal and the management apparatus 790 (server) are capable of communication via the Internet, wireless LAN, other communication networks, and the like. The reader 10 can identify the address of the management apparatus 790 (server) by reading the address information (such as a URL) from the data recording region in the information code 700. As a result, the reader 10 can transmit and receive information to and from the management apparatus 790 (server).
In addition, specification information specifying the augmented reality image to be displayed is recorded in the data recording region of the information code 700. For example, in the management apparatus 790 (server), a plurality of candidate images serving as the augmented reality images are each tied with corresponding identification information and registered. When the identification information is specified, the candidate image corresponding to the identification information can be read as the augmented reality image. Any of the identification information tied to the plurality of candidate images is recorded in the data recording region of the information code 700 as the specification information. As a result, the augmented reality image to be superimposed-displayed is identified.
When augmented reality display is performed using the information code 700 such as this, first, the light receiving sensor 23 (imaging unit) of the reader 10 shown in
When such information is obtained, the reader 10 accesses the management apparatus 790 based on the obtained address information and requests the augmented reality image corresponding to the obtained specification information (information specifying the augmented reality image) (see (2) in
Meanwhile, when reading the information code 700 in (1) in
Then, the augmented reality image obtained from the management apparatus 790 (server) is superimposed on the actual image captured by the light receiving sensor 23 (imaging unit) such as to match the orientation of the identified coordinate system. In the example in
Here, an example is given in which the augmented reality image is superimposed-displayed on the actual image captured by the light receiving sensor 23 (imaging unit) of the reader 10. However, the background may be changed to an image other than the actual image and superimposed-displayed.
In the present configuration, the control circuit 40 in
In addition, in the present configuration, the control circuit 40 of the reader 10 in
The light receiving sensor 23 in
In addition, the control circuit 40 corresponds to an example of the address information obtaining unit. The control circuit 40 functions to obtain the address information from the data recording region of the information code 700. Furthermore, the control circuit 40 corresponds to an example of a requesting unit. The control circuit 40 functions to request the augmented reality image from the transmission destination specified by the address information obtained by the address information obtaining unit.
In addition, the control circuit 40 in
In the present configuration, the information code 700 in which the reference graphical form having the predetermined shape is provided within the image region serves as an object to be read, The information code 700 can be used not only as a data medium, but also as a reference medium for performing image processing. When a portion within the code region is used as an AR marker used in augmented reality technology as in the present configuration, the information code 700 can be applied as an element in augmented reality technology.
In addition, the augmented reality marker 712 can be detected after narrowing down to the area within the identified code region, upon detection of the information code 700. Therefore, the augmented reality marker 712 can be more easily and accurately detected.
Furthermore, an image that does not easily affect reading and augmented display can be freely placed within the code region of the information code 700. Therefore, convenience is increased. In particular, when the image related to the planned augmented reality image is displayed in the code region as in the present configuration, the augmented reality image can be ascertained or predicted before reading. Therefore, convenience is further increased.
The present invention is not limited to the embodiments that are described above and in the drawings. For example, the following embodiments are also encompassed in the technical scope of the present invention.
According to the first embodiment and the like, position data (such as the image region position information shown in
The present invention can also be configured as a display apparatus that is capable of displaying any one of, a plurality of, or all of information codes described above. In addition, the present invention can also be configured as a printing apparatus that is capable of printing any one of, a plurality of, or all of information codes described above. Furthermore, the present invention can be configured as a computer-readable program for producing any one of, a plurality of, or all of information codes described above. In addition, the present invention can also be configured as a recording medium in which is recorded a program for producing any one of, a plurality of, or all of information codes described above. Furthermore, the present information can be understood to be an information code medium (an article configured by printed matter, direct marking, or the like) to which is attached any one of, a plurality of, or all of information codes described above. In addition, the present invention can be understood to be a display image displaying any one of, a plurality of, or all of information codes described above.
In the configuration in
According to the above-described embodiments, an example is given in which the free space 110 is provided in the center portion of the code region. However, the arrangement of the free space 110 is not limited to this example. In a similar manner, the position of the image region 121 is also not limited to the above-described example. For example, a free space may be provided near the peripheral edge of the code region, and the image region 121 may be provided in this position. In addition, as the design in the image region, various other designs may be used as long as the configuration is composed of a graphical form, a pattern, a color, or a combination thereof. In addition, when information is displayed instead of or in addition the design, the content of the information varies.
According to the above-described embodiments, the QR code is given as an example of the other type of code. The specification patterns of the QR code are given as the examples of the specification patterns used in the information code 100. However, a two-dimensional code of a type other than the QR code may also be used. For example, a data matrix code may be used as the other type of code. The specification patterns of the data matrix code may be used as the specification patterns of the information code 100.
The correspondence in the arrangement conversion table set as in
According to the above-described embodiments, an example is given in which the free space 110 is provided and the image region is provided within the free space 110. However, the present invention is not limited to this example. For example, an image such as that described above can be provided by overwriting or the like in the cell arrangement region of a typical two-dimensional code (such as a QR code) capable of error correction. The data in the region broken by the image region such as this may be restored by error correction.
According to the above-described embodiments, an example is given in which the image region identified at S46 in
According to the above-described embodiment, an example of a “code region” is given. However, the “code region” is merely required to be the smallest square region or oblong region that includes all cells of a plurality of types configuring the information code. A cell may not be arranged in a portion of the inner edge portion of the code region. For example, a free space 810 may be formed adjacent to the peripheral edge portion of the code region, as in an information code 800 in
According to the above-described embodiments, light colored cells such as white cells and dark colored cells such as black cells are given as examples of the cells of a plurality of types configuring the code region. However, the specification pattern regions, the data recording region, and the error correction code recording region within the code region may be composed of first type cells having a predetermined concentration, luminance, and hue, and second type cells of which any of the concentration, luminance, and hue differs from that of the first type cell. Alternatively, the specification pattern regions, the data recording region, and the error correction code recording region within the code region may be composed of cells of three or more types that each differ in terms of any of the concentration, luminance, and hue.
According to the above-described embodiment, an example is given in which a plurality of cells having a square outer shape are arranged in the specification pattern regions, the data recording region, and the error correction code recording region within the code region, arranged. However, the outer shape of the cell may be a quadrangle other than a square, and may also be a graphical form other than a quadrangle, such as a polygon, a circle, or an ellipse.
In the foregoing embodiments, the specification patterns may be fixed patterns, not limited to the position detection patterns 104, timing patterns 106, and aliment patterns 108. Independently of contents of the data recording region and the error-correction-code recording regions, the figures for the fixed patterns may be changed.
According to the above-described embodiment, an example of the free space is given. However, the free space is merely required to be a region in which data to be interpreted is not recorded by the cells, and display of information or display of an image is performed by a method differing from the method for recording data in the data recording region. For example, as according to the first embodiment, the free space may be configured as a region in which no code words are arranged at all. A region in a publically known QR code or the like in which the error correction code words expressing the error correction codes and the data code words expressing the data to be interpreted are not arranged and filler code words are arranged may serve as the free space. In addition, in either free space, “display of information by a method differing from the method for recording data in the data recording region by the cells” can be performed. In addition to the information given as examples according to the above-described embodiments, for example, the display of information may involve other information composed of characters, numeric characters, and other symbols. The method for displaying image may be that in which a specific item or service is indicated by a trademark or the like. In addition, “display of an image is performed by a method differing from the method for recording data in the data recording region” can be performed in the free space. In addition to the images given as examples according to the above-described embodiments, the display of an image enables various shapes, patterns, colors, and combinations thereof to be shown.
In addition, a configuration such as an information code 900 in
In the present configuration as well, a plurality of versions are prepared for the type of the information code 900. The number of rows and the number of columns of the cells, the shapes and positions of the specification patterns, the position of the format information, and the candidate positions (addresses) of the code words are determined in advance for each version. When the producing apparatus 2 produces the information code 900, the version information is arranged in a position (a reserved region 107 in
When the information code 900 is produced, any version is selected from among the plurality of versions prepared in advance. As a result, the basic configuration (the positions of the specification patterns 104, the number of rows and number of columns of the cells, and the candidate positions of the code words) within the code region is determined. For example, in the version having the configuration shown in
When the version is determined and the basic configuration within the code region is determined, the shape and position of the free space is determined. As the method for determining the shape of the free space, for example, the shape may be determined by a method in which the shape is selected from among a plurality of candidate shapes prepared in advance. Alternatively, the shape may be determined by a method in which a shape is set based on shape designation information inputted in the information code producing apparatus 2 from outside. Alternatively, the shape may be determined to be only a determined fixed shape. In addition, the position of the free space may be determined to be a predetermined fixed position, or the position may be determined by user input of information designating the position.
After the free space is determined, the information code 900 is produced by a configuration in which the code words in the data recording region and the code words in the error correction code recording region are each arranged in code word candidate positions outside of the determined position of the free space. For example, in the version that has a configuration such as that in
After the specification pattern regions (regions of the specification patterns 104 and other specification patterns), the format region (predetermined position 105), the version region 107, each code word region, and the like are determined, the specific content of the free space 910 is determined. In the information code 900 as well, the information code 900 having a function similar to that in
-
- 1 system which uses an information code
- 2: information code producing apparatus
- 3: control unit
- 10: information code reader
- 23: light receiving sensor (imaging unit)
- 35: memory (registering unit)
- 40: control circuit (data recording region reading unit, image processing unit, output unit)
- 46: liquid crystal display (output unit)
- 48: communication interface (output unit)
- 90: external apparatus (authentication apparatus)
- 100: information code
- 102: cell
- 104: position detecting pattern (specification pattern)
- 110: free space (image region)
- REG: code region
- R: medium carrying information code
Yoshida, Kenichi, Ushijima, Takao, Ito, Kunihiko, Tanaka, Masami, Yoda, Takuya, Watabe, Motoaki
| Patent | Priority | Assignee | Title |
| 10572715, | Oct 05 2015 | SECUVE CO , LTD | Segment block-based handwritten signature authentication system and method |
| 11036945, | May 28 2019 | System for generating and verifying a matrix barcode, method for generating a matrix barcode, and method for verifying a matrix barcode | |
| 11238269, | Nov 17 2017 | Pixart Imaging Inc. | Encoding and decoding method and information recognition device using the same |
| 11361177, | Dec 17 2013 | INFOTOO INTERNATIONAL LIMITED | Composite information bearing devices |
| 11593579, | Jan 04 2021 | the dtx company | Multiplexed quick response (“QR”) code experience derivation |
| 11599757, | Aug 24 2021 | the dtx company | Collectible machine-readable codes |
| 11620352, | Feb 18 2020 | the dtx company | Refactoring of static machine-readable codes |
| 11709907, | Feb 01 2023 | the dtx company | Offline to online conversion linkage |
| 11734533, | Jun 08 2022 | the dtx company | Secure scanning of machine-readable codes |
| 11741328, | Jan 14 2022 | the dtx company | Dynamic embedding of machine-readable codes within video and digital media |
| 11741331, | Feb 23 2022 | the dtx company | Electronic tag with two scanning modalities |
| 11861450, | Jan 04 2021 | the dtx company | Multiplexed quick response (“QR”) code experience derivation |
| D962965, | Aug 09 2020 | the dtx company | Display screen or portion thereof with a graphical user interface for a machine-readable label |
| D962966, | Mar 10 2021 | the dtx company | Display screen or portion thereof with a graphical user interface for a machine-readable label |
| ER417, | |||
| ER6913, |
| Patent | Priority | Assignee | Title |
| 5541396, | Jul 19 1991 | Method of representing binary data | |
| 20070277150, | |||
| 20070279474, | |||
| 20080000991, | |||
| 20090242649, | |||
| 20100310161, | |||
| 20130112760, | |||
| 20160055404, | |||
| 20160189016, | |||
| JP2001256501, | |||
| JP2004206674, | |||
| JP2007241327, | |||
| JP2008152334, | |||
| JP2009129410, | |||
| JP2009259192, | |||
| JP2012164236, | |||
| JP5057560, | |||
| WO2007107533, |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Dec 18 2013 | Denso Wave Incorporated | (assignment on the face of the patent) | / | |||
| Aug 25 2015 | YODA, TAKUYA | Denso Wave Incorporated | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 036736 | /0507 | |
| Aug 25 2015 | ITO, KUNIHIKO | Denso Wave Incorporated | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 036736 | /0507 | |
| Aug 25 2015 | WATABE, MOTOAKI | Denso Wave Incorporated | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 036736 | /0507 | |
| Aug 26 2015 | TANAKA, MASAMI | Denso Wave Incorporated | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 036736 | /0507 | |
| Aug 26 2015 | USHIJIMA, TAKAO | Denso Wave Incorporated | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 036736 | /0507 | |
| Sep 01 2015 | YOSHIDA, KENICHI | Denso Wave Incorporated | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 036736 | /0507 |
| Date | Maintenance Fee Events |
| May 31 2017 | ASPN: Payor Number Assigned. |
| Sep 22 2020 | M1551: Payment of Maintenance Fee, 4th Year, Large Entity. |
| Date | Maintenance Schedule |
| Jul 11 2020 | 4 years fee payment window open |
| Jan 11 2021 | 6 months grace period start (w surcharge) |
| Jul 11 2021 | patent expiry (for year 4) |
| Jul 11 2023 | 2 years to revive unintentionally abandoned end. (for year 4) |
| Jul 11 2024 | 8 years fee payment window open |
| Jan 11 2025 | 6 months grace period start (w surcharge) |
| Jul 11 2025 | patent expiry (for year 8) |
| Jul 11 2027 | 2 years to revive unintentionally abandoned end. (for year 8) |
| Jul 11 2028 | 12 years fee payment window open |
| Jan 11 2029 | 6 months grace period start (w surcharge) |
| Jul 11 2029 | patent expiry (for year 12) |
| Jul 11 2031 | 2 years to revive unintentionally abandoned end. (for year 12) |